项目做了一个切换界面动画的功能,用到了出栈入栈的,写了一个demo
package com.myron.stackview; import java.util.Stack; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.view.animation.Animation; import android.view.animation.LinearInterpolator; import android.view.animation.TranslateAnimation; import android.widget.Button; import android.widget.ImageView; import android.widget.LinearLayout; public class StackViewActivity extends Activity { private Stack<View> mViewStack = new Stack<View>(); private View mCurrentView; private LinearLayout parent2; // 动画 private TranslateAnimation mAnimLeftOut; private TranslateAnimation mAnimRightIn; private TranslateAnimation mAnimRightOut; private TranslateAnimation mAnimLeftIn; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); initAnim(); //第一个界面 LinearLayout parent = new LinearLayout(this); parent.setOrientation(LinearLayout.VERTICAL); ImageView imageView = new ImageView(this); imageView.setBackgroundResource(R.drawable.icon); parent.addView(imageView, -2, -2); Button btnPush = new Button(this); btnPush.setId(1); btnPush.setText("push"); parent.addView(btnPush, -2, -2); pushView2Stack(parent); btnPush.setOnClickListener(listener); //第二个界面 parent2 = new LinearLayout(this); parent2.setOrientation(LinearLayout.VERTICAL); ImageView imageView2 = new ImageView(this); imageView2.setBackgroundResource(R.drawable.icon); parent2.addView(imageView2, -2, -2); Button btnPop = new Button(this); btnPop.setId(2); btnPop.setText("pop"); parent2.addView(btnPop, -2, -2); btnPop.setOnClickListener(listener); } private OnClickListener listener = new OnClickListener() { @Override public void onClick(View v) { int id = v.getId(); switch (id) { case 1: pushView2Stack(parent2); break; case 2: popViewFromStack(); break; default: break; } } }; /** * 进栈 * @param newView */ public void pushView2Stack(View newView) { if (mViewStack.size() > 0) { View peek = mViewStack.peek(); peek.clearFocus(); peek.startAnimation(mAnimLeftOut); } mViewStack.push(newView); mCurrentView = newView; setContentView(newView); newView.requestFocus(); if (mViewStack.size() > 1) { // 启动动画 newView.startAnimation(mAnimRightIn); } } public View popViewFromStack() { if (mViewStack.size() > 1) { // 弹出旧ui View pop = mViewStack.pop(); pop.clearFocus(); // 动画 pop.startAnimation(mAnimRightOut); // 新ui mCurrentView = mViewStack.peek(); setContentView(mCurrentView); mCurrentView.requestFocus(); mCurrentView.startAnimation(mAnimLeftIn); return mCurrentView; } else { finish(); return null; } } private void initAnim() { // 左出 mAnimLeftOut = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, -1, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); mAnimLeftOut.setDuration(400); mAnimLeftOut.setFillAfter(true); mAnimLeftOut.setInterpolator(new LinearInterpolator()); // 右进 mAnimRightIn = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 1, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); mAnimRightIn.setDuration(400); mAnimRightIn.setFillAfter(true); mAnimRightIn.setInterpolator(new LinearInterpolator()); // 右出 mAnimRightOut = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); mAnimRightOut.setDuration(400); mAnimRightOut.setFillAfter(true); mAnimRightOut.setInterpolator(new LinearInterpolator()); // 左进 mAnimLeftIn = new TranslateAnimation(Animation.RELATIVE_TO_SELF, -1, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0); mAnimLeftIn.setDuration(400); mAnimLeftIn.setFillAfter(true); mAnimLeftIn.setInterpolator(new LinearInterpolator()); } }
时间: 2024-10-11 06:53:37