源码下载地址：http://download.csdn.net/detail/zhou_anzhuojinjie/9661542
话不多说直接上代码
dependencies {
compile fileTree(include: [‘*.jar‘], dir: ‘libs‘)
androidTestCompile(‘com.android.support.test.espresso:espresso-core:2.2.2‘, {
exclude group: ‘com.android.support‘, module: ‘support-annotations‘
})
compile ‘com.android.support:appcompat-v7:24.2.1‘
testCompile ‘junit:junit:4.12‘
compile ‘com.android.support:recyclerview-v7:24.2.1‘
}
PullRefreshLayout
package com.linzhou.recyclerviewfresh.refresh;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.LayerDrawable;
import android.support.annotation.ColorRes;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.DecelerateInterpolator;
import android.widget.ImageView;
import android.widget.RelativeLayout;
/**
* Created by joe on 2016/10/23.
*/
public class PullRefreshLayout extends RelativeLayout {
private int[] colors = {
0xFFFF0000, 0xFFFF7F00, 0xFFFFFF00, 0xFF00FF00
, 0xFF00FFFF, 0xFF0000FF, 0xFF8B00FF};
private final int CIRCLE_BG_LIGHT = 0xFFFAFAFA;
private MaterialProgressDrawable mProgress;
private ValueAnimator mValueAnimator;
private boolean mStart = false;
private boolean mVisable = false;
private static final int PULL_IMAGE_SIZE = 40;
private static int PULL_IMAGE_SIZE_PX;//上拉View的大小（像素）
private static int PULL_IMAGE_SIZE_PX_MAX ;//最大拉动的距离
private static int PULL_IMAGE_SIZE_PX_EXECUTE ;//拉动到什么位置开始执行
private static int PULL_IMAGE_SIZE_PX_EXECUTE_REFRESH ;//刷新是所在的位置
private static float ROTATE_ANIM_ANGLE_PER;//根据最大距离计算旋转角度的比列
// private static final
private ImageView mImageView;
private boolean mIsFirst;
private int mStartY, mLastY;
private RecyclerView mRecyclerView;
//private int mFirstVisiblePosition;
private int mLastVisiblePosition;
private boolean mIsCanScoll;
private boolean mVisibleCanScoll;
private boolean mPrepareAnimation;//准备执行动画
private boolean mIsAllowLoadMore = true;//是否可以上拉刷新
private boolean mIsDispatch = true;//是否分发事件
public PullRefreshLayout(Context context) {
this(context, null);
}
public PullRefreshLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public PullRefreshLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
/**
* 是否允许下拉加载更多
* @param allowLoadMore
*/
public void setAllowLoadMore(boolean allowLoadMore) {
mIsAllowLoadMore = allowLoadMore;
}
public boolean isAllowLoadMore() {
return mIsAllowLoadMore;
}
/**
* 设置进度圈的颜色
* @param colors 如：0xFFFF0000
*/
public void setColorSchemeColors(int... colors){
this.colors = colors;
}
/**
* 设置进度圈的颜色
* @param colorResIds 如：R.color.red
*/
public void setColorSchemeResources(@ColorRes int... colorResIds) {
final Resources res = getResources();
int[] colorRes = new int[colorResIds.length];
for (int i = 0; i < colorResIds.length; i++) {
colorRes[i] = res.getColor(colorResIds[i]);
}
setColorSchemeColors(colorRes);
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.onLayout(changed, l, t, r, b);
if (!mIsFirst) {
createProgressView();
over:
for (int i = 0; i < getChildCount(); i++) {
View childView = getChildAt(i);
if (childView instanceof SwipeRefreshLayout) {
ViewGroup viewGroup = (ViewGroup) childView;
for (int j = 0; j < viewGroup.getChildCount(); j++) {
View childViewJ = viewGroup.getChildAt(j);
if (childViewJ instanceof RecyclerView) {
mRecyclerView = (RecyclerView) childViewJ;
break over;
}
}
}
if(childView instanceof RecyclerView){
mRecyclerView = (RecyclerView) childView;
break over;
}
}
mIsFirst = true;
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent event) {
if(!mIsAllowLoadMore) return super.dispatchTouchEvent(event);
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mStartY = (int) event.getRawY();
break;
case MotionEvent.ACTION_MOVE:
if (!mStart) {
//如果不满足上拉的条件就直接分发事件
if(!canPullUp()){
return super.dispatchTouchEvent(event);
}
if (canPullUp() && !mIsCanScoll) {
showRefreshArrow();
mStartY = (int) event.getRawY();
mIsCanScoll = true;
} else {
//mStartY = (int) event.getRawY();
//hideRefreshArrow();
//hide();
}
if (mVisibleCanScoll) {
int endY = (int) event.getRawY();
int offset = mStartY - endY;
//System.out.println("----------------------offset:" + offset);
LayoutParams lp = (LayoutParams) mImageView.getLayoutParams();
int bottomMargin = lp.bottomMargin;
bottomMargin += offset;
if (bottomMargin >= PULL_IMAGE_SIZE_PX_MAX) {
bottomMargin = PULL_IMAGE_SIZE_PX_MAX;
}
if (bottomMargin <= -PULL_IMAGE_SIZE_PX) {
bottomMargin = -PULL_IMAGE_SIZE_PX;
}
lp.setMargins(lp.leftMargin, lp.topMargin, lp.rightMargin, bottomMargin);
mImageView.setLayoutParams(lp);
rotateAniamtor(bottomMargin * ROTATE_ANIM_ANGLE_PER);
mStartY = endY;
}
LayoutParams lp = (LayoutParams) mImageView.getLayoutParams();
//如果按住上拉时，上拉箭头向下滑动的时候事件不应分发
if(mVisable && lp.bottomMargin > -PULL_IMAGE_SIZE_PX){
mIsDispatch = false;
}else if(mVisable && lp.bottomMargin == -PULL_IMAGE_SIZE_PX){//等到上拉箭头被隐藏掉的时候在分发事件
mIsDispatch = true;
}
//是否分发事件
if(!mIsDispatch) {
return false;
}
else {
return super.dispatchTouchEvent(event);
}
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
if (!mStart) {
if (mVisibleCanScoll) {
LayoutParams lp = (LayoutParams) mImageView.getLayoutParams();
if (lp.bottomMargin >= PULL_IMAGE_SIZE_PX_EXECUTE) {
//lp.setMargins(lp.leftMargin, lp.topMargin, lp.rightMargin, PULL_IMAGE_SIZE_PX / 3 * 2);
//mImageView.setLayoutParams(lp);
//start();
getValueToTranslation();
mPrepareAnimation = true;
if (mOnPullListener != null) {
mOnPullListener.onLoadMore(this);
}
} else {
hideArrow();
}
}
if (!mStart && !mPrepareAnimation)
hideArrow();
}
mIsCanScoll = false;
break;
}
return super.dispatchTouchEvent(event);
}
private void hideArrow() {
LayoutParams lp = (LayoutParams) mImageView.getLayoutParams();
//lp.setMargins(lp.leftMargin, lp.topMargin, lp.rightMargin, -PULL_IMAGE_SIZE_PX);
//mImageView.setLayoutParams(lp);
translationTo(lp.bottomMargin,-PULL_IMAGE_SIZE_PX,false);
}
private void showRefreshArrow() {
mImageView.setVisibility(View.VISIBLE);
visable();
}
/**
* 隐藏箭头显示的载体ImageView
*/
private void hideRefreshArrow() {
mImageView.setVisibility(View.GONE);
}
private boolean canPullUp() {
if(mRecyclerView == null || mRecyclerView.getAdapter() == null) return false;
RecyclerView.LayoutManager lm = mRecyclerView.getLayoutManager();
mLastVisiblePosition = getLastVisibleItemPosition();
int count = mRecyclerView.getAdapter().getItemCount();
if (0 == count) {
// 没有item的时候也可以上拉加载
return true;
} else if (mLastVisiblePosition == (count - 1)) {
// 滑到底部了
if (lm.findViewByPosition(count - 1).getBottom() <= getMeasuredHeight()) {
return true;
}
}
return false;
}
/**
* 获取底部可见项的位置
*
* @return
*/
private int getLastVisibleItemPosition() {
RecyclerView.LayoutManager lm = mRecyclerView.getLayoutManager();
int lastVisibleItemPosition = 0;
if (lm instanceof GridLayoutManager) {
lastVisibleItemPosition = ((GridLayoutManager) lm).findLastVisibleItemPosition();
} else if (lm instanceof LinearLayoutManager) {
lastVisibleItemPosition = ((LinearLayoutManager) lm).findLastVisibleItemPosition();
}
return lastVisibleItemPosition;
}
/**
* 创建刷新View和初始化一些数据
*/
private void createProgressView() {
mImageView = new ImageView(getContext());
int size = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, PULL_IMAGE_SIZE, getContext().getResources().getDisplayMetrics());
PULL_IMAGE_SIZE_PX = size;
PULL_IMAGE_SIZE_PX_MAX = PULL_IMAGE_SIZE_PX * 2;
PULL_IMAGE_SIZE_PX_EXECUTE = PULL_IMAGE_SIZE_PX;
PULL_IMAGE_SIZE_PX_EXECUTE_REFRESH = PULL_IMAGE_SIZE_PX / 3 * 2;
ROTATE_ANIM_ANGLE_PER = (360.0f / PULL_IMAGE_SIZE_PX_MAX);
LayoutParams lp = new LayoutParams(size, size);
lp.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
lp.addRule(RelativeLayout.CENTER_HORIZONTAL);
lp.setMargins(lp.leftMargin, lp.topMargin, lp.rightMargin, -PULL_IMAGE_SIZE_PX);
mImageView.setLayoutParams(lp);
mImageView.setBackground(getShapeDrawable());
addView(mImageView);
mImageView.setVisibility(View.GONE);
mProgress = new MaterialProgressDrawable(getContext(), mImageView);
mProgress.setBackgroundColor(CIRCLE_BG_LIGHT);
//圈圈颜色,可以是多种颜色
mProgress.setColorSchemeColors(colors);
//设置圈圈的各种大小
mProgress.updateSizes(MaterialProgressDrawable.LARGE);
mImageView.setImageDrawable(mProgress);
}
/**
* mImageView的背景
*/
private Drawable getShapeDrawable() {
/**
* <layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- 第一层 上部和左部偏移一定距离-->
<item
>
<shape android:shape="oval">
<solid android:color="#f5f5f5" />
<!-- 描边 -->
<stroke
android:width="0.5dp"
android:color="#99f5f5f5" />
</shape>
</item>
<!-- 第二层 下部和有部偏移一定距离-->
<item
android:left="2dp"
android:top="2dp"
android:bottom="2dp"
android:right="2dp">
<shape android:shape="oval">
<solid android:color="#ffffff" />
<!-- 描边 -->
<!--<stroke android:width="0.33dp" android:color="#dedede" />-->
</shape>
</item>
</layer-list>
*/
//代码实现
GradientDrawable gradientDrawable = new GradientDrawable();
gradientDrawable.setShape(GradientDrawable.OVAL);
gradientDrawable.setColor(Color.parseColor("#f5f5f5"));
int stroke = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 0.5f, getContext().getResources().getDisplayMetrics());
gradientDrawable.setStroke(stroke,Color.parseColor("#99f5f5f5"));
GradientDrawable gradientDrawable2 = new GradientDrawable();
gradientDrawable2.setShape(GradientDrawable.OVAL);
gradientDrawable2.setColor(Color.parseColor("#ffffff"));
LayerDrawable drawable = new LayerDrawable(new Drawable[]{gradientDrawable,gradientDrawable2});
int padding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2, getContext().getResources().getDisplayMetrics());
drawable.setLayerInset(1,padding,padding,padding,padding);////第一个参数1代表数组的第二个元素，为白色
return drawable;
}
/**
* 隐藏箭头
*/
private void hide() {
if (mValueAnimator != null) {
mValueAnimator.cancel();
mVisable = false;
mVisibleCanScoll = false;
}
}
private void visable() {
if (mValueAnimator == null) {
mValueAnimator = mValueAnimator.ofFloat(0f, 1f);
mValueAnimator.setDuration(10);
mValueAnimator.setInterpolator(new DecelerateInterpolator());
mValueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float n = (float) animation.getAnimatedValue();
//圈圈的旋转角度
mProgress.setProgressRotation(n * 0.5f);
//圈圈周长，0f-1F
mProgress.setStartEndTrim(0f, n * 0.8f);
//箭头大小，0f-1F
mProgress.setArrowScale(n);
//透明度，0-255
mProgress.setAlpha((int) (255 * n));
}
});
mValueAnimator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
mVisable = true;
}
});
}
if (!mValueAnimator.isRunning()) {
if (!mVisable) {
//是否显示箭头
mProgress.showArrow(true);
mValueAnimator.start();
mVisibleCanScoll = true;
}
}
}
private void start() {
if (mVisable) {
if (!mStart) {
mProgress.start();
mStart = true;
}
}
}
/**
* 计算执行动画的距离参数
*/
private void getValueToTranslation() {
//如果mImageView还没有被创建出来是不会执行的
if(mImageView != null) {
LayoutParams lp = (LayoutParams) mImageView.getLayoutParams();
int bottomMargin = lp.bottomMargin;
//执行平移
translationTo(bottomMargin, PULL_IMAGE_SIZE_PX_EXECUTE_REFRESH, true);
}
}
private void stop() {
if (mStart) {
mProgress.stop();
mStart = false;
mVisable = false;
mVisibleCanScoll = false;
}
}
/**
* 执行平移动画
* @param from
* @param to
*/
private void translationTo(int from,int to,final boolean isShow){
//1.调用ofInt(int...values)方法创建ValueAnimator对象
ValueAnimator mAnimator = ValueAnimator.ofInt(from,to);
//2.为目标对象的属性变化设置监听器
mAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
// 3.为目标对象的属性设置计算好的属性值
int animatorValue = (int)animation.getAnimatedValue();
MarginLayoutParams marginLayoutParams = (MarginLayoutParams) mImageView.getLayoutParams();
marginLayoutParams.bottomMargin = animatorValue;
mImageView.setLayoutParams(marginLayoutParams);
}
});
mAnimator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
if(isShow){
start();
mPrepareAnimation = false;
}else{
hideRefreshArrow();
hide();
}
}
});
//4.设置动画的持续时间、是否重复及重复次数等属性
mAnimator.setDuration(100);
//mAnimator.setRepeatCount(3);
mAnimator.setRepeatMode(ValueAnimator.INFINITE);
//5.为ValueAnimator设置目标对象并开始执行动画
mAnimator.setTarget(mImageView);
mAnimator.start();
}
/**
* 旋转动画效果
*/
private void rotateAniamtor(float from){
ObjectAnimator mAnimatorRotate = ObjectAnimator.ofFloat(mImageView, "rotation",from,from + 1);
mAnimatorRotate.setRepeatMode(Animation.INFINITE);
mAnimatorRotate.setRepeatCount(1);
mAnimatorRotate.setDuration(10);
mAnimatorRotate.start();
}
/**
* 加载更多或停止加载更多
* @param refreshing
*/
public void setRefreshing(boolean refreshing) {
if(!mIsAllowLoadMore) return;
if(refreshing){
if(mStart) return;
showRefreshArrow();
getValueToTranslation();
mPrepareAnimation = true;
if (mOnPullListener != null) {
mOnPullListener.onLoadMore(this);
}
mIsCanScoll = false;
}else {
stop();
hideArrow();
}
}
/**
* 当前是否在上拉刷新
* @return
*/
public boolean isRefreshing(){
return mStart;
}
/**
* 刷新加载回调接口
*
* @author chenjing
*/
public interface OnPullListener {
/**
* 加载操作
*/
void onLoadMore(PullRefreshLayout pullRefreshLayout);
}
private OnPullListener mOnPullListener;
public void setOnPullListener(OnPullListener listener) {
mOnPullListener = listener;
}
}
MaterialProgressDrawable
package com.linzhou.recyclerviewfresh.refresh;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.drawable.Animatable;
import android.graphics.drawable.Drawable;
import android.support.annotation.IntDef;
import android.support.annotation.NonNull;
import android.support.v4.view.animation.FastOutSlowInInterpolator;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.Interpolator;
import android.view.animation.LinearInterpolator;
import android.view.animation.Transformation;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.ArrayList;
/**
* Created by joe on 2016/10/23.
*/
public class MaterialProgressDrawable extends Drawable implements Animatable {
private static final Interpolator LINEAR_INTERPOLATOR = new LinearInterpolator();
private static final Interpolator MATERIAL_INTERPOLATOR = new FastOutSlowInInterpolator();
private static final float FULL_ROTATION = 1080.0f;
@Retention(RetentionPolicy.CLASS)
@IntDef({LARGE, DEFAULT})
public @interface ProgressDrawableSize {}
// Maps to ProgressBar.Large style
public static final int LARGE = 0;
// Maps to ProgressBar default style
public static final int DEFAULT = 1;
// Maps to ProgressBar default style
private static final int CIRCLE_DIAMETER = 40;
private static final float CENTER_RADIUS = 8.75f; //should add up to 10 when + stroke_width
private static final float STROKE_WIDTH = 2.5f;
// Maps to ProgressBar.Large style
private static final int CIRCLE_DIAMETER_LARGE = 56;
private static final float CENTER_RADIUS_LARGE = 12.5f;
private static final float STROKE_WIDTH_LARGE = 3f;
private final int[] COLORS = new int[] {
Color.BLACK
};
/**
* The value in the linear interpolator for animating the drawable at which
* the color transition should start
*/
private static final float COLOR_START_DELAY_OFFSET = 0.75f;
private static final float END_TRIM_START_DELAY_OFFSET = 0.5f;
private static final float START_TRIM_DURATION_OFFSET = 0.5f;
/** The duration of a single progress spin in milliseconds. */
private static final int ANIMATION_DURATION = 1332;
/** The number of points in the progress "star". */
private static final float NUM_POINTS = 5f;
/** The list of animators operating on this drawable. */
private final ArrayList<Animation> mAnimators = new ArrayList<>();
/** The indicator ring, used to manage animation state. */
private final Ring mRing;
/** Canvas rotation in degrees. */
private float mRotation;
/** Layout info for the arrowhead in dp */
private static final int ARROW_WIDTH = 10;
private static final int ARROW_HEIGHT = 5;
private static final float ARROW_OFFSET_ANGLE = 5;
/** Layout info for the arrowhead for the large spinner in dp */
private static final int ARROW_WIDTH_LARGE = 12;
private static final int ARROW_HEIGHT_LARGE = 6;
private static final float MAX_PROGRESS_ARC = .8f;
private Resources mResources;
private View mParent;
private Animation mAnimation;
private float mRotationCount;
private double mWidth;
private double mHeight;
boolean mFinishing;
public MaterialProgressDrawable(Context context, View parent) {
mParent = parent;
mResources = context.getResources();
mRing = new Ring(mCallback);
mRing.setColors(COLORS);
updateSizes(DEFAULT);
setupAnimators();
}
private void setSizeParameters(double progressCircleWidth, double progressCircleHeight,
double centerRadius, double strokeWidth, float arrowWidth, float arrowHeight) {
final Ring ring = mRing;
final DisplayMetrics metrics = mResources.getDisplayMetrics();
final float screenDensity = metrics.density;
mWidth = progressCircleWidth * screenDensity;
mHeight = progressCircleHeight * screenDensity;
ring.setStrokeWidth((float) strokeWidth * screenDensity);
ring.setCenterRadius(centerRadius * screenDensity);
ring.setColorIndex(0);
ring.setArrowDimensions(arrowWidth * screenDensity, arrowHeight * screenDensity);
ring.setInsets((int) mWidth, (int) mHeight);
}
public void updateSizes(@ProgressDrawableSize int size) {
if (size == LARGE) {
setSizeParameters(CIRCLE_DIAMETER_LARGE, CIRCLE_DIAMETER_LARGE, CENTER_RADIUS_LARGE,
STROKE_WIDTH_LARGE, ARROW_WIDTH_LARGE, ARROW_HEIGHT_LARGE);
} else {
setSizeParameters(CIRCLE_DIAMETER, CIRCLE_DIAMETER, CENTER_RADIUS, STROKE_WIDTH,
ARROW_WIDTH, ARROW_HEIGHT);
}
}
/**
* @param show Set to true to display the arrowhead on the progress spinner.
*/
public void showArrow(boolean show) {
mRing.setShowArrow(show);
}
/**
* @param scale Set the scale of the arrowhead for the spinner.
*/
public void setArrowScale(float scale) {
mRing.setArrowScale(scale);
}
/**
* Set the start and end trim for the progress spinner arc.
*
* @param startAngle start angle
* @param endAngle end angle
*/
public void setStartEndTrim(float startAngle, float endAngle) {
mRing.setStartTrim(startAngle);
mRing.setEndTrim(endAngle);
}
/**
* Set the amount of rotation to apply to the progress spinner.
*
* @param rotation Rotation is from [0..1]
*/
public void setProgressRotation(float rotation) {
mRing.setRotation(rotation);
}
/**
* Update the background color of the circle image view.
*/
public void setBackgroundColor(int color) {
mRing.setBackgroundColor(color);
}
/**
* Set the colors used in the progress animation from color resources.
* The first color will also be the color of the bar that grows in response
* to a user swipe gesture.
*
* @param colors
*/
public void setColorSchemeColors(int... colors) {
mRing.setColors(colors);
mRing.setColorIndex(0);
}
@Override
public int getIntrinsicHeight() {
return (int) mHeight;
}
@Override
public int getIntrinsicWidth() {
return (int) mWidth;
}
@Override
public void draw(Canvas c) {
final Rect bounds = getBounds();
final int saveCount = c.save();
c.rotate(mRotation, bounds.exactCenterX(), bounds.exactCenterY());
mRing.draw(c, bounds);
c.restoreToCount(saveCount);
}
@Override
public void setAlpha(int alpha) {
mRing.setAlpha(alpha);
}
public int getAlpha() {
return mRing.getAlpha();
}
@Override
public void setColorFilter(ColorFilter colorFilter) {
mRing.setColorFilter(colorFilter);
}
@SuppressWarnings("unused")
void setRotation(float rotation) {
mRotation = rotation;
invalidateSelf();
}
@SuppressWarnings("unused")
private float getRotation() {
return mRotation;
}
@Override
public int getOpacity() {
return PixelFormat.TRANSLUCENT;
}
@Override
public boolean isRunning() {
final ArrayList<Animation> animators = mAnimators;
final int N = animators.size();
for (int i = 0; i < N; i++) {
final Animation animator = animators.get(i);
if (animator.hasStarted() && !animator.hasEnded()) {
return true;
}
}
return false;
}
@Override
public void start() {
mAnimation.reset();
mRing.storeOriginals();
// Already showing some part of the ring
if (mRing.getEndTrim() != mRing.getStartTrim()) {
mFinishing = true;
mAnimation.setDuration(ANIMATION_DURATION/2);
mParent.startAnimation(mAnimation);
} else {
mRing.setColorIndex(0);
mRing.resetOriginals();
mAnimation.setDuration(ANIMATION_DURATION);
mParent.startAnimation(mAnimation);
}
}
@Override
public void stop() {
mParent.clearAnimation();
setRotation(0);
mRing.setShowArrow(false);
mRing.setColorIndex(0);
mRing.resetOriginals();
}
private float getMinProgressArc(Ring ring) {
return (float) Math.toRadians(
ring.getStrokeWidth() / (2 * Math.PI * ring.getCenterRadius()));
}
// Adapted from ArgbEvaluator.java
private int evaluateColorChange(float fraction, int startValue, int endValue) {
int startInt = (Integer) startValue;
int startA = (startInt >> 24) & 0xff;
int startR = (startInt >> 16) & 0xff;
int startG = (startInt >> 8) & 0xff;
int startB = startInt & 0xff;
int endInt = (Integer) endValue;
int endA = (endInt >> 24) & 0xff;
int endR = (endInt >> 16) & 0xff;
int endG = (endInt >> 8) & 0xff;
int endB = endInt & 0xff;
return (int)((startA + (int)(fraction * (endA - startA))) << 24) |
(int)((startR + (int)(fraction * (endR - startR))) << 16) |
(int)((startG + (int)(fraction * (endG - startG))) << 8) |
(int)((startB + (int)(fraction * (endB - startB))));
}
/**
* Update the ring color if this is within the last 25% of the animation.
* The new ring color will be a translation from the starting ring color to
* the next color.
*/
private void updateRingColor(float interpolatedTime, Ring ring) {
if (interpolatedTime > COLOR_START_DELAY_OFFSET) {
// scale the interpolatedTime so that the full
// transformation from 0 - 1 takes place in the
// remaining time
ring.setColor(evaluateColorChange((interpolatedTime - COLOR_START_DELAY_OFFSET)
/ (1.0f - COLOR_START_DELAY_OFFSET), ring.getStartingColor(),
ring.getNextColor()));
}
}
private void applyFinishTranslation(float interpolatedTime, Ring ring) {
// shrink back down and complete a full rotation before
// starting other circles
// Rotation goes between [0..1].
updateRingColor(interpolatedTime, ring);
float targetRotation = (float) (Math.floor(ring.getStartingRotation() / MAX_PROGRESS_ARC)
+ 1f);
final float minProgressArc = getMinProgressArc(ring);
final float startTrim = ring.getStartingStartTrim()
+ (ring.getStartingEndTrim() - minProgressArc - ring.getStartingStartTrim())
* interpolatedTime;
ring.setStartTrim(startTrim);
ring.setEndTrim(ring.getStartingEndTrim());
final float rotation = ring.getStartingRotation()
+ ((targetRotation - ring.getStartingRotation()) * interpolatedTime);
ring.setRotation(rotation);
}
private void setupAnimators() {
final Ring ring = mRing;
final Animation animation = new Animation() {
@Override
public void applyTransformation(float interpolatedTime, Transformation t) {
if (mFinishing) {
applyFinishTranslation(interpolatedTime, ring);
} else {
// The minProgressArc is calculated from 0 to create an
// angle that matches the stroke width.
final float minProgressArc = getMinProgressArc(ring);
final float startingEndTrim = ring.getStartingEndTrim();
final float startingTrim = ring.getStartingStartTrim();
final float startingRotation = ring.getStartingRotation();
updateRingColor(interpolatedTime, ring);
// Moving the start trim only occurs in the first 50% of a
// single ring animation
if (interpolatedTime <= START_TRIM_DURATION_OFFSET) {
// scale the interpolatedTime so that the full
// transformation from 0 - 1 takes place in the
// remaining time
final float scaledTime = (interpolatedTime)
/ (1.0f - START_TRIM_DURATION_OFFSET);
final float startTrim = startingTrim
+ ((MAX_PROGRESS_ARC - minProgressArc) * MATERIAL_INTERPOLATOR
.getInterpolation(scaledTime));
ring.setStartTrim(startTrim);
}
// Moving the end trim starts after 50% of a single ring
// animation completes
if (interpolatedTime > END_TRIM_START_DELAY_OFFSET) {
// scale the interpolatedTime so that the full
// transformation from 0 - 1 takes place in the
// remaining time
final float minArc = MAX_PROGRESS_ARC - minProgressArc;
float scaledTime = (interpolatedTime - START_TRIM_DURATION_OFFSET)
/ (1.0f - START_TRIM_DURATION_OFFSET);
final float endTrim = startingEndTrim
+ (minArc * MATERIAL_INTERPOLATOR.getInterpolation(scaledTime));
ring.setEndTrim(endTrim);
}
final float rotation = startingRotation + (0.25f * interpolatedTime);
ring.setRotation(rotation);
float groupRotation = ((FULL_ROTATION / NUM_POINTS) * interpolatedTime)
+ (FULL_ROTATION * (mRotationCount / NUM_POINTS));
setRotation(groupRotation);
}
}
};
animation.setRepeatCount(Animation.INFINITE);
animation.setRepeatMode(Animation.RESTART);
animation.setInterpolator(LINEAR_INTERPOLATOR);
animation.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
mRotationCount = 0;
}
@Override
public void onAnimationEnd(Animation animation) {
// do nothing
}
@Override
public void onAnimationRepeat(Animation animation) {
ring.storeOriginals();
ring.goToNextColor();
ring.setStartTrim(ring.getEndTrim());
if (mFinishing) {
// finished closing the last ring from the swipe gesture; go
// into progress mode
mFinishing = false;
animation.setDuration(ANIMATION_DURATION);
ring.setShowArrow(false);
} else {
mRotationCount = (mRotationCount + 1) % (NUM_POINTS);
}
}
});
mAnimation = animation;
}
private final Callback mCallback = new Callback() {
@Override
public void invalidateDrawable(Drawable d) {
invalidateSelf();
}
@Override
public void scheduleDrawable(Drawable d, Runnable what, long when) {
scheduleSelf(what, when);
}
@Override
public void unscheduleDrawable(Drawable d, Runnable what) {
unscheduleSelf(what);
}
};
private static class Ring {
private final RectF mTempBounds = new RectF();
private final Paint mPaint = new Paint();
private final Paint mArrowPaint = new Paint();
private final Callback mCallback;
private float mStartTrim = 0.0f;
private float mEndTrim = 0.0f;
private float mRotation = 0.0f;
private float mStrokeWidth = 5.0f;
private float mStrokeInset = 2.5f;
private int[] mColors;
// mColorIndex represents the offset into the available mColors that the
// progress circle should currently display. As the progress circle is
// animating, the mColorIndex moves by one to the next available color.
private int mColorIndex;
private float mStartingStartTrim;
private float mStartingEndTrim;
private float mStartingRotation;
private boolean mShowArrow;
private Path mArrow;
private float mArrowScale;
private double mRingCenterRadius;
private int mArrowWidth;
private int mArrowHeight;
private int mAlpha;
private final Paint mCirclePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private int mBackgroundColor;
private int mCurrentColor;
public Ring(Callback callback) {
mCallback = callback;
mPaint.setStrokeCap(Paint.Cap.SQUARE);
mPaint.setAntiAlias(true);
mPaint.setStyle(Paint.Style.STROKE);
mArrowPaint.setStyle(Paint.Style.FILL);
mArrowPaint.setAntiAlias(true);
}
public void setBackgroundColor(int color) {
mBackgroundColor = color;
}
/**
* Set the dimensions of the arrowhead.
*
* @param width Width of the hypotenuse of the arrow head
* @param height Height of the arrow point
*/
public void setArrowDimensions(float width, float height) {
mArrowWidth = (int) width;
mArrowHeight = (int) height;
}
/**
* Draw the progress spinner
*/
public void draw(Canvas c, Rect bounds) {
final RectF arcBounds = mTempBounds;
arcBounds.set(bounds);
arcBounds.inset(mStrokeInset, mStrokeInset);
final float startAngle = (mStartTrim + mRotation) * 360;
final float endAngle = (mEndTrim + mRotation) * 360;
float sweepAngle = endAngle - startAngle;
mPaint.setColor(mCurrentColor);
c.drawArc(arcBounds, startAngle, sweepAngle, false, mPaint);
drawTriangle(c, startAngle, sweepAngle, bounds);
if (mAlpha < 255) {
mCirclePaint.setColor(mBackgroundColor);
mCirclePaint.setAlpha(255 - mAlpha);
c.drawCircle(bounds.exactCenterX(), bounds.exactCenterY(), bounds.width() / 2,
mCirclePaint);
}
}
private void drawTriangle(Canvas c, float startAngle, float sweepAngle, Rect bounds) {
if (mShowArrow) {
if (mArrow == null) {
mArrow = new Path();
mArrow.setFillType(Path.FillType.EVEN_ODD);
} else {
mArrow.reset();
}
// Adjust the position of the triangle so that it is inset as
// much as the arc, but also centered on the arc.
float inset = (int) mStrokeInset / 2 * mArrowScale;
float x = (float) (mRingCenterRadius * Math.cos(0) + bounds.exactCenterX());
float y = (float) (mRingCenterRadius * Math.sin(0) + bounds.exactCenterY());
// Update the path each time. This works around an issue in SKIA
// where concatenating a rotation matrix to a scale matrix
// ignored a starting negative rotation. This appears to have
// been fixed as of API 21.
mArrow.moveTo(0, 0);
mArrow.lineTo(mArrowWidth * mArrowScale, 0);
mArrow.lineTo((mArrowWidth * mArrowScale / 2), (mArrowHeight
* mArrowScale));
mArrow.offset(x - inset, y);
mArrow.close();
// draw a triangle
mArrowPaint.setColor(mCurrentColor);
c.rotate(startAngle + sweepAngle - ARROW_OFFSET_ANGLE, bounds.exactCenterX(),
bounds.exactCenterY());
c.drawPath(mArrow, mArrowPaint);
}
}
/**
* Set the colors the progress spinner alternates between.
*
* @param colors Array of integers describing the colors. Must be non-<code>null</code>.
*/
public void setColors(@NonNull int[] colors) {
mColors = colors;
// if colors are reset, make sure to reset the color index as well
setColorIndex(0);
}
/**
* Set the absolute color of the progress spinner. This is should only
* be used when animating between current and next color when the
* spinner is rotating.
*
* @param color int describing the color.
*/
public void setColor(int color) {
mCurrentColor = color;
}
/**
* @param index Index into the color array of the color to display in
* the progress spinner.
*/
public void setColorIndex(int index) {
mColorIndex = index;
mCurrentColor = mColors[mColorIndex];
}
/**
* @return int describing the next color the progress spinner should use when drawing.
*/
public int getNextColor() {
return mColors[getNextColorIndex()];
}
private int getNextColorIndex() {
return (mColorIndex + 1) % (mColors.length);
}
/**
* Proceed to the next available ring color. This will automatically
* wrap back to the beginning of colors.
*/
public void goToNextColor() {
setColorIndex(getNextColorIndex());
}
public void setColorFilter(ColorFilter filter) {
mPaint.setColorFilter(filter);
invalidateSelf();
}
/**
* @param alpha Set the alpha of the progress spinner and associated arrowhead.
*/
public void setAlpha(int alpha) {
mAlpha = alpha;
}
/**
* @return Current alpha of the progress spinner and arrowhead.
*/
public int getAlpha() {
return mAlpha;
}
/**
* @param strokeWidth Set the stroke width of the progress spinner in pixels.
*/
public void setStrokeWidth(float strokeWidth) {
mStrokeWidth = strokeWidth;
mPaint.setStrokeWidth(strokeWidth);
invalidateSelf();
}
@SuppressWarnings("unused")
public float getStrokeWidth() {
return mStrokeWidth;
}
@SuppressWarnings("unused")
public void setStartTrim(float startTrim) {
mStartTrim = startTrim;
invalidateSelf();
}
@SuppressWarnings("unused")
public float getStartTrim() {
return mStartTrim;
}
public float getStartingStartTrim() {
return mStartingStartTrim;
}
public float getStartingEndTrim() {
return mStartingEndTrim;
}
public int getStartingColor() {
return mColors[mColorIndex];
}
@SuppressWarnings("unused")
public void setEndTrim(float endTrim) {
mEndTrim = endTrim;
invalidateSelf();
}
@SuppressWarnings("unused")
public float getEndTrim() {
return mEndTrim;
}
@SuppressWarnings("unused")
public void setRotation(float rotation) {
mRotation = rotation;
invalidateSelf();
}
@SuppressWarnings("unused")
public float getRotation() {
return mRotation;
}
public void setInsets(int width, int height) {
final float minEdge = (float) Math.min(width, height);
float insets;
if (mRingCenterRadius <= 0 || minEdge < 0) {
insets = (float) Math.ceil(mStrokeWidth / 2.0f);
} else {
insets = (float) (minEdge / 2.0f - mRingCenterRadius);
}
mStrokeInset = insets;
}
@SuppressWarnings("unused")
public float getInsets() {
return mStrokeInset;
}
/**
* @param centerRadius Inner radius in px of the circle the progress
* spinner arc traces.
*/
public void setCenterRadius(double centerRadius) {
mRingCenterRadius = centerRadius;
}
public double getCenterRadius() {
return mRingCenterRadius;
}
/**
* @param show Set to true to show the arrow head on the progress spinner.
*/
public void setShowArrow(boolean show) {
if (mShowArrow != show) {
mShowArrow = show;
invalidateSelf();
}
}
/**
* @param scale Set the scale of the arrowhead for the spinner.
*/
public void setArrowScale(float scale) {
if (scale != mArrowScale) {
mArrowScale = scale;
invalidateSelf();
}
}
/**
* @return The amount the progress spinner is currently rotated, between [0..1].
*/
public float getStartingRotation() {
return mStartingRotation;
}
/**
* If the start / end trim are offset to begin with, store them so that
* animation starts from that offset.
*/
public void storeOriginals() {
mStartingStartTrim = mStartTrim;
mStartingEndTrim = mEndTrim;
mStartingRotation = mRotation;
}
/**
* Reset the progress spinner to default rotation, start and end angles.
*/
public void resetOriginals() {
mStartingStartTrim = 0;
mStartingEndTrim = 0;
mStartingRotation = 0;
setStartTrim(0);
setEndTrim(0);
setRotation(0);
}
private void invalidateSelf() {
mCallback.invalidateDrawable(null);
}
}
}DividerItemDecoration
package com.linzhou.recyclerviewfresh.refresh;
/**
* Created by joe on 2016/10/23.
*/
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* limitations under the License.
*/
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
/**
* This class is from the v7 samples of the Android SDK. It‘s not by me!
* <p/>
* See the license above for details.
*/
public class DividerItemDecoration extends RecyclerView.ItemDecoration {
private static final int[] ATTRS = new int[]{
android.R.attr.listDivider
};
public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL;
public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL;
private Drawable mDivider;
private int mOrientation;
public DividerItemDecoration(Context context, int orientation) {
final TypedArray a = context.obtainStyledAttributes(ATTRS);
mDivider = a.getDrawable(0);
a.recycle();
setOrientation(orientation);
}
public void setOrientation(int orientation) {
if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST) {
throw new IllegalArgumentException("invalid orientation");
}
mOrientation = orientation;
}
@Override
public void onDraw(Canvas c, RecyclerView parent) {
//Log.v("recyclerview - itemdecoration", "onDraw()");
if (mOrientation == VERTICAL_LIST) {
drawVertical(c, parent);
} else {
drawHorizontal(c, parent);
}
}
public void drawVertical(Canvas c, RecyclerView parent) {
final int left = parent.getPaddingLeft();
final int right = parent.getWidth() - parent.getPaddingRight();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
RecyclerView v = new RecyclerView(parent.getContext());
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
.getLayoutParams();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
public void drawHorizontal(Canvas c, RecyclerView parent) {
final int top = parent.getPaddingTop();
final int bottom = parent.getHeight() - parent.getPaddingBottom();
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++) {
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
.getLayoutParams();
final int left = child.getRight() + params.rightMargin;
final int right = left + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
@Override
public void getItemOffsets(Rect outRect, int itemPosition, RecyclerView parent) {
if (mOrientation == VERTICAL_LIST) {
outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
} else {
outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0);
}
}
}DividerGridItemDecoration
package com.linzhou.recyclerviewfresh.refresh;
/**
* Created by joe on 2016/10/23.
*/
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.RecyclerView.LayoutManager;
import android.support.v7.widget.RecyclerView.State;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.View;
public class DividerGridItemDecoration extends RecyclerView.ItemDecoration
{
private static final int[] ATTRS = new int[] { android.R.attr.listDivider };
private Drawable mDivider;
public DividerGridItemDecoration(Context context)
{
final TypedArray a = context.obtainStyledAttributes(ATTRS);
mDivider = a.getDrawable(0);
a.recycle();
}
@Override
public void onDraw(Canvas c, RecyclerView parent, State state)
{
drawHorizontal(c, parent);
drawVertical(c, parent);
}
private int getSpanCount(RecyclerView parent)
{
// 列数
int spanCount = -1;
LayoutManager layoutManager = parent.getLayoutManager();
if (layoutManager instanceof GridLayoutManager)
{
spanCount = ((GridLayoutManager) layoutManager).getSpanCount();
} else if (layoutManager instanceof StaggeredGridLayoutManager)
{
spanCount = ((StaggeredGridLayoutManager) layoutManager)
.getSpanCount();
}
return spanCount;
}
public void drawHorizontal(Canvas c, RecyclerView parent)
{
int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++)
{
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
.getLayoutParams();
final int left = child.getLeft() - params.leftMargin;
final int right = child.getRight() + params.rightMargin
+ mDivider.getIntrinsicWidth();
final int top = child.getBottom() + params.bottomMargin;
final int bottom = top + mDivider.getIntrinsicHeight();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
public void drawVertical(Canvas c, RecyclerView parent)
{
final int childCount = parent.getChildCount();
for (int i = 0; i < childCount; i++)
{
final View child = parent.getChildAt(i);
final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
.getLayoutParams();
final int top = child.getTop() - params.topMargin;
final int bottom = child.getBottom() + params.bottomMargin;
final int left = child.getRight() + params.rightMargin;
final int right = left + mDivider.getIntrinsicWidth();
mDivider.setBounds(left, top, right, bottom);
mDivider.draw(c);
}
}
private boolean isLastColum(RecyclerView parent, int pos, int spanCount,
int childCount)
{
LayoutManager layoutManager = parent.getLayoutManager();
if (layoutManager instanceof GridLayoutManager)
{
if ((pos + 1) % spanCount == 0)// 如果是最后一列，则不需要绘制右边
{
return true;
}
} else if (layoutManager instanceof StaggeredGridLayoutManager)
{
int orientation = ((StaggeredGridLayoutManager) layoutManager)
.getOrientation();
if (orientation == StaggeredGridLayoutManager.VERTICAL)
{
if ((pos + 1) % spanCount == 0)// 如果是最后一列，则不需要绘制右边
{
return true;
}
} else
{
childCount = childCount - childCount % spanCount;
if (pos >= childCount)// 如果是最后一列，则不需要绘制右边
return true;
}
}
return false;
}
private boolean isLastRaw(RecyclerView parent, int pos, int spanCount,
int childCount)
{
LayoutManager layoutManager = parent.getLayoutManager();
if (layoutManager instanceof GridLayoutManager)
{
childCount = childCount - childCount % spanCount;
if (pos >= childCount)// 如果是最后一行，则不需要绘制底部
return true;
} else if (layoutManager instanceof StaggeredGridLayoutManager)
{
int orientation = ((StaggeredGridLayoutManager) layoutManager)
.getOrientation();
// StaggeredGridLayoutManager 且纵向滚动
if (orientation == StaggeredGridLayoutManager.VERTICAL)
{
childCount = childCount - childCount % spanCount;
// 如果是最后一行，则不需要绘制底部
if (pos >= childCount)
return true;
} else
// StaggeredGridLayoutManager 且横向滚动
{
// 如果是最后一行，则不需要绘制底部
if ((pos + 1) % spanCount == 0)
{
return true;
}
}
}
return false;
}
@Override
public void getItemOffsets(Rect outRect, int itemPosition,
RecyclerView parent)
{
int spanCount = getSpanCount(parent);
int childCount = parent.getAdapter().getItemCount();
if (isLastRaw(parent, itemPosition, spanCount, childCount))// 如果是最后一行，则不需要绘制底部
{
outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0);
} else if (isLastColum(parent, itemPosition, spanCount, childCount))// 如果是最后一列，则不需要绘制右边
{
outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
} else
{
outRect.set(0, 0, mDivider.getIntrinsicWidth(),
mDivider.getIntrinsicHeight());
}
}
}CommonAdapter
package com.linzhou.recyclerviewfresh.adapter;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import java.util.List;
/**
* Created by joe on 2016/10/23.
*/
public abstract class CommonAdapter<T> extends RecyclerView.Adapter<ViewHolder> {
protected Context mContext;
protected int mLayoutId;
protected List<T> mDatas;
protected LayoutInflater mLayoutInflater;
public CommonAdapter(Context context,int layoutId,List<T> datas){
this.mContext = context;
this.mLayoutId = layoutId;
this.mDatas = datas;
mLayoutInflater = LayoutInflater.from(context);
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
ViewHolder viewHolder = ViewHolder.get(mContext, parent, mLayoutId);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
//暴露接口，使用viewHoler.getView(viewId)获取对应的控件，并且设置相应的数据
convert(holder,mDatas.get(position),position);
}
@Override
public void onBindViewHolder(ViewHolder holder, int position, List<Object> payloads) {
super.onBindViewHolder(holder, position, payloads);
}
public abstract void convert(ViewHolder viewHolder, T item, int position);
@Override
public int getItemCount() {
return mDatas == null ? 0 : mDatas.size();
}
}
MultiItemCommonAdapter
package com.linzhou.recyclerviewfresh.adapter;
import android.content.Context;
import android.view.ViewGroup;
import java.util.List;
/**
* Created by joe on 2016/10/23.
*/
public abstract class MultiItemCommonAdapter<T> extends CommonAdapter<T> {
private MultiItemTypeSupport mMultiItemTypeSupport;
public MultiItemCommonAdapter(Context context, List<T> datas ,MultiItemTypeSupport multiItemTypeSupport) {
//layoutId是在onCreateViewHolder中加载布局的，因为这里还要重写该方法，所以不需要传layoutId
super(context, -1, datas);
this.mMultiItemTypeSupport = multiItemTypeSupport;
}
@Override
public int getItemViewType(int position) {
//根据position和java bean对象中的某个字段值就可以该条目是什么类型的了
//类型可以从0开始，依次往上加，每个数字对应一种类型
return mMultiItemTypeSupport.getItemViewType(position,mDatas.get(position));
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
//通过viewType获取不同条目的布局id
int itemLayoutId = mMultiItemTypeSupport.getItemLayoutId(viewType);
//通过布局id去创建ViewHolder
ViewHolder viewHolder = ViewHolder.get(mContext, parent, itemLayoutId);
return viewHolder;
}
}
MultiItemTypeSupport
package com.linzhou.recyclerviewfresh.adapter;
/**
* Created by joe on 2016/10/23.
*/
public interface MultiItemTypeSupport<T> {
int getItemViewType(int position, T item);//通过position来返回条目的类型
int getItemLayoutId(int itemType);//根据要显示的条目类型，去返回相应的布局id
}
ViewHolder
package com.linzhou.recyclerviewfresh.adapter;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
/**
* Created by joe on 2016/10/23.
*/
public class ViewHolder extends RecyclerView.ViewHolder {
private Context mContext;
private View mConvertView;//条目布局
private SparseArray<View> mViews;//保存条目布局中的所有控件（一个ViewHolder对象对应一个条目布局）
public ViewHolder(Context context , View itemView, ViewGroup viewGroup) {
super(itemView);
this.mContext = context;
this.mConvertView = itemView;
mViews = new SparseArray<View>();
}
/**
* 得到ViewHolder对象
* @param context
* @param parent
* @param layoutId 条目布局的资源id
* @return
*/
public static ViewHolder get(Context context ,ViewGroup parent,int layoutId){
View itemView = LayoutInflater.from(context).inflate(layoutId, parent, false);
ViewHolder viewHolder = new ViewHolder(context,itemView,parent);
return viewHolder;
}
/**
* 根据控件id获取条目布局(ViewHolder)中的控件
* @param viewId 控件id
* @param <T>
* @return
*/
public <T extends View> T getView(int viewId){
View view = mViews.get(viewId);
if(view == null){
view = mConvertView.findViewById(viewId);
mViews.put(viewId,view);
}
return (T)view;
}
/**
* 给TextView设置文本
* @param viewId TextView的id
* @param text 显示的文本
* @return
*/
public ViewHolder setText(int viewId,String text){
TextView textView = getView(viewId);
textView.setText(text);
return this;
}
}
MainActivity
package com.linzhou.recyclerviewfresh.activity;
import android.content.Context;
import android.graphics.Color;
import android.os.SystemClock;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.View;
import com.linzhou.recyclerviewfresh.R;
import com.linzhou.recyclerviewfresh.adapter.CommonAdapter;
import com.linzhou.recyclerviewfresh.adapter.ViewHolder;
import com.linzhou.recyclerviewfresh.refresh.DividerItemDecoration;
import com.linzhou.recyclerviewfresh.refresh.PullRefreshLayout;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private RecyclerView mRecycler;
private SwipeRefreshLayout mSwipe;
private PullRefreshLayout mPull;
private ArrayList<String> mDatas;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mRecycler = (RecyclerView) findViewById(R.id.recycler);
mSwipe = (SwipeRefreshLayout) findViewById(R.id.swipe);
mPull = (PullRefreshLayout) findViewById(R.id.pull);
findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mPull.setAllowLoadMore(!mPull.isAllowLoadMore());
}
});
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mRecycler.setLayoutManager(layoutManager);
mRecycler.addItemDecoration(new DividerItemDecoration(this,LinearLayoutManager.VERTICAL));
mPull.setColorSchemeColors(Color.BLACK,Color.CYAN,Color.YELLOW);
mDatas = new ArrayList<>();
for(int i=0;i<220;i++){
mDatas.add(i+"");
}
final MyAdapter adapter = new MyAdapter(this,R.layout.recyclercview_item,mDatas);
mRecycler.setAdapter(adapter);
mSwipe.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
new Thread(new Runnable() {
@Override
public void run() {
SystemClock.sleep(2000);
mDatas.clear();
for(int i=0;i<220;i++){
mDatas.add(i+"");
}
runOnUiThread(new Runnable() {
@Override
public void run() {
adapter.notifyDataSetChanged();
mSwipe.setRefreshing(false);
}
});
}
}).start();
}
});
mPull.setOnPullListener(new PullRefreshLayout.OnPullListener() {
@Override
public void onLoadMore(final PullRefreshLayout pullRefreshLayout) {
new Thread(new Runnable() {
@Override
public void run() {
SystemClock.sleep(2000);
for (int i = 0; i < 10; i++) {
mDatas.add(mDatas.size() + "");
}
runOnUiThread(new Runnable() {
@Override
public void run() {
adapter.notifyDataSetChanged();
pullRefreshLayout.setRefreshing(false);
}
});
}
}).start();
}
});
}
class MyAdapter extends CommonAdapter<String> {
public MyAdapter(Context context, int layoutId, List<String> datas) {
super(context, layoutId, datas);
}
@Override
public void convert(ViewHolder viewHolder, String item, int position) {
viewHolder.setText(R.id.recyclerView_tv,item);
}
}
}
recyclercview_item
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<TextView
android:id="@+id/recyclerView_tv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
/>
</LinearLayout>
activity_main
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.linzhou.recyclerviewfresh.activity.MainActivity">
<com.linzhou.recyclerviewfresh.refresh.PullRefreshLayout
android:id="@+id/pull"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.SwipeRefreshLayout
android:id="@+id/swipe"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:cacheColorHint="@null"
android:scrollbars="vertical"></android.support.v7.widget.RecyclerView>
</android.support.v4.widget.SwipeRefreshLayout>
</com.linzhou.recyclerviewfresh.refresh.PullRefreshLayout>
<Button
android:id="@+id/btn"
android:layout_toRightOf="@id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="允许"
/>
</RelativeLayout>
完工！
源码下载地址：http://download.csdn.net/detail/zhou_anzhuojinjie/9661542
时间： 2024-11-10 07:52:59