android圆角矩形背景

Android平台

使用方便

StateRoundRectDrawable mRoundRectDradable = new StateRoundRectDrawable(int normalCorlor, int pressColor);

mRoundRectDradable.setBottomLeftRadius(0);

mRoundRectDradable.setBottomRightRadius(0); .............

xxxxx.setBackgroundDrawable(mRoundRectDradable);

[1].[代码] [Java]代码跳至 [1] [2]

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import
android.graphics.Canvas;

import
android.graphics.Color;

import
android.graphics.ColorFilter;

import
android.graphics.Paint;

import
android.graphics.Rect;

import
android.graphics.drawable.Drawable;

import
android.graphics.drawable.shapes.RoundRectShape;

import
android.view.MotionEvent;

public
class RoundRectDradableextends
Drawable{

private
static final float DEFAULT_RADIUS =6.f;

private
Paint mPaint =new
Paint();

private
RoundRectShape mShape;

private
float[] mOuter;

private
int mColor;

private
int mPressColor;

private
float mTopLeftRadius = DEFAULT_RADIUS;

private
float mTopRightRadius = DEFAULT_RADIUS;

private
float mBottomLeftRadius = DEFAULT_RADIUS;

private
float mBottomRightRadius = DEFAULT_RADIUS;

public
RoundRectDradable() {

mColor = Color.WHITE;

mPressColor = Color.WHITE;

mPaint.setColor(mColor);

mPaint.setAntiAlias(true);

}

public
float getTopLeftRadius() {

return
mTopLeftRadius;

}

public
void setTopLeftRadius(float
topLeftRadius) {

this.mTopLeftRadius = topLeftRadius;

}

public
float getTopRightRadius() {

return
mTopRightRadius;

}

public
void setTopRightRadius(float
topRightRadius) {

this.mTopRightRadius = topRightRadius;

}

public
float getBottomLeftRadius() {

return
mBottomLeftRadius;

}

public
void setBottomLeftRadius(float
bottomLeftRadius) {

this.mBottomLeftRadius = bottomLeftRadius;

}

public
float getBottomRightRadius() {

return
mBottomRightRadius;

}

public
void setBottomRightRadius(float
bottomRightRadius) {

this.mBottomRightRadius = bottomRightRadius;

}

public
int getPressColor() {

return
mPressColor;

}

public
void setPressColor(int
pressColor) {

this.mPressColor = pressColor;

}

@Override

protected
void onBoundsChange(Rect bounds) {

super.onBoundsChange(bounds);

refreshShape();

mShape.resize(bounds.right - bounds.left, bounds.bottom - bounds.top);

}

private
void refreshShape(){

mOuter =new
float[]{mTopLeftRadius, mTopLeftRadius

, mTopRightRadius, mTopRightRadius

, mBottomLeftRadius, mBottomLeftRadius

, mBottomRightRadius, mBottomLeftRadius};

mShape =new
RoundRectShape(mOuter,null,null);

}

public
void setColor(int
color){

mColor = color;

mPaint.setColor(color);

}

@Override

public
void draw(Canvas canvas) {

mShape.draw(canvas, mPaint);

}

@Override

public
void setAlpha(int
alpha) {

mPaint.setAlpha(alpha);

}

@Override

public
void setColorFilter(ColorFilter cf) {

mPaint.setColorFilter(cf);

}

@Override

public
int getOpacity() {

return
mPaint.getAlpha();

}

[2].[代码] [Java]代码跳至 [1] [2]

import
android.graphics.Rect;

import
android.graphics.drawable.StateListDrawable;

public
class StateRoundRectDrawableextends
StateListDrawable{

private
static final float DEFAULT_RADIUS =6.f;

private
float mTopLeftRadius = DEFAULT_RADIUS;

private
float mTopRightRadius = DEFAULT_RADIUS;

private
float mBottomLeftRadius = DEFAULT_RADIUS;

private
float mBottomRightRadius = DEFAULT_RADIUS;

private
int mNormalColor;

private
int mPressedColor;

private
RoundRectDradable mNormalDradable;

private
RoundRectDradable mPressedDradable;

public
StateRoundRectDrawable(int
normalCorlor,int
pressColor) {

this.mNormalColor = normalCorlor;

this.mPressedColor = pressColor;

}

@Override

protected
void onBoundsChange(Rect bounds) {

if(mNormalDradable ==null){

mNormalDradable =new
RoundRectDradable();

mNormalDradable.setTopLeftRadius(mTopLeftRadius);

mNormalDradable.setTopRightRadius(mTopRightRadius);

mNormalDradable.setBottomLeftRadius(mBottomLeftRadius);

mNormalDradable.setBottomRightRadius(mBottomRightRadius);

mNormalDradable.setColor(mNormalColor);

mNormalDradable.onBoundsChange(bounds);

}

if(mPressedDradable ==null){

mPressedDradable =new
RoundRectDradable();

mPressedDradable.setTopLeftRadius(mTopLeftRadius);

mPressedDradable.setTopRightRadius(mTopRightRadius);

mPressedDradable.setBottomLeftRadius(mBottomLeftRadius);

mPressedDradable.setBottomRightRadius(mBottomRightRadius);

mPressedDradable.setColor(mPressedColor);

mPressedDradable.onBoundsChange(bounds);

}

this.addState(new
int[]{-android.R.attr.state_pressed}, mNormalDradable);

this.addState(new
int[]{android.R.attr.state_pressed}, mPressedDradable);

}

public
float getTopLeftRadius() {

return
mTopLeftRadius;

}

public
void setTopLeftRadius(float
topLeftRadius) {

this.mTopLeftRadius = topLeftRadius;

}

public
float getTopRightRadius() {

return
mTopRightRadius;

}

public
void setTopRightRadius(float
topRightRadius) {

this.mTopRightRadius = topRightRadius;

}

public
float getBottomLeftRadius() {

return
mBottomLeftRadius;

}

public
void setBottomLeftRadius(float
bottomLeftRadius) {

this.mBottomLeftRadius = bottomLeftRadius;

}

public
float getBottomRightRadius() {

return
mBottomRightRadius;

}

public
void setBottomRightRadius(float
bottomRightRadius) {

this.mBottomRightRadius = bottomRightRadius;

}

public
int getNormalColor() {

return
mNormalColor;

}

public
void setNormalColor(int
normalColor) {

this.mNormalColor = normalColor;

}

public
int getPressedColor() {

return
mPressedColor;

}

public
void setPressedColor(int
pressedColor) {

this.mPressedColor = pressedColor;

}

时间： 2024-08-05 23:46:57

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android圆角矩形背景

[1].[代码] [Java]代码 跳至 [1] [2]

[2].[代码] [Java]代码 跳至 [1] [2]

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