Android Gallery3D

MainActivity

package org.wp.activity;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.view.GestureDetector;import android.view.MotionEvent;import android.view.View;import android.view.View.OnTouchListener;import android.view.animation.Animation;import android.view.animation.AnimationUtils;import android.view.ViewConfiguration;import android.widget.FrameLayout;import android.widget.ImageView;public class MainActivity extends Activity {/** 图片资源ID **/private Integer[] mImageIds = { R.drawable.image1, R.drawable.image2,R.drawable.image3, R.drawable.image4, R.drawable.image5,R.drawable.image6 };private static final int LEFT = 0x10;private static final int RIGHT = 0x11;/** FreamLayout **/private FrameLayout mContainer;/** 第一个ImageView **/private ImageView myIv1;/** 第二个ImageView **/private ImageView myIv2;/** 底部圆圈 **/private PageControlView pageControlView = null;/** 抖动动画 **/private Animation shake;/** 手势识别对象GestureDetector **/private GestureDetector gestureDetector = null;/** Handler对象 **/public Handler iHandler;/** 标识是否动画正在执行 **/private boolean flag = false;/** 定时开始时间 **/private long start;/** 当前时间 **/private long end;/** 显示图片的数量 **/private final int childCount = 6;/** 当前屏幕索引 **/private int currentScreenIndex = 0;/** ImageView先后顺序 **/private int currentIndex = 0;private final int iv1Index = 1;private final int iv2Index = 2;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);addBtnEvent();addMessageHandler();}private void addBtnEvent() {// 抖动动画shake = AnimationUtils.loadAnimation(this, R.anim.shake);// 手势识别gestureDetector = new GestureDetector(new FlingGestureDetector());mContainer = (FrameLayout) this.findViewById(R.id.mContainer);mContainer.setOnTouchListener(new OnTouchListener() {@Overridepublic boolean onTouch(View arg0, MotionEvent arg1) {// 如果没有动画正在执行if (!flag) {// 当前时间记录为开始时间start = System.currentTimeMillis();// 判断用户手势gestureDetector.onTouchEvent(arg1);}return false;}});myIv1 = (ImageView) this.findViewById(R.id.myIv1);myIv2 = (ImageView) this.findViewById(R.id.myIv2);// 初始化显示图片myIv2.setImageResource(mImageIds[0]);// 初始化当前图片所以为0currentScreenIndex = 0;// 当前先后索引为iv2IndexcurrentIndex = iv2Index;pageControlView = (PageControlView) this.findViewById(R.id.myPageControlView);/** 设置圆圈的数量 **/pageControlView.setCount(childCount);/** 初始化圆圈 **/pageControlView.generatePageControl(0);// 启动监听线程new OnFlingListener().start();}private void addMessageHandler() {iHandler = new Handler() {public void handleMessage(android.os.Message msg) {switch (msg.what) {case LEFT:scrollToScreen(currentScreenIndex - 1, 90.0f);break;case RIGHT:scrollToScreen(currentScreenIndex + 1, -90.0f);break;}}};}/** 手势识别 **/private class FlingGestureDetector extends GestureDetector.SimpleOnGestureListener {@Overridepublic boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {// 判断是否达到最小轻松速度,取绝对值的if (Math.abs(velocityX) > ViewConfiguration.get(MainActivity.this).getScaledMinimumFlingVelocity()) {if (velocityX > 0 && currentScreenIndex > 0) {// 上一张图片scrollToScreen(currentScreenIndex - 1, 90.0f);} else if (velocityX < 0 && currentScreenIndex < childCount - 1) {// 下一张图片scrollToScreen(currentScreenIndex + 1, -90.0f);} else {// 如果没有，抖动mContainer.startAnimation(shake);}}return false;}}/** 切换到指定屏 **/public void scrollToScreen(int whichScreen, float degrees) {// 更新当前屏幕索引currentScreenIndex = whichScreen;// 重绘底部圆圈pageControlView.callback(currentScreenIndex);if (currentIndex == iv1Index) {// 如果myIv1在前currentIndex = iv2Index;// 设置myIv2图片资源myIv2.setImageResource(mImageIds[whichScreen]);// 旋转myIv1applyRotation(myIv1, 0, degrees);// 旋转myIv2applyRotation(myIv2, -degrees, 0);} else if (currentIndex == iv2Index) {// 如果myIv2在前currentIndex = iv1Index;// 设置myIv1图片资源myIv1.setImageResource(mImageIds[whichScreen]);// 旋转myIv2applyRotation(myIv2, 0, degrees);// 旋转myIv1applyRotation(myIv1, -degrees, 0);}}/** 实现旋转 **/private void applyRotation(ImageView iv, float start, float end) {final float centerX = mContainer.getWidth() / 2.0f;final float centerY = mContainer.getHeight() / 2.0f;final Rotate3dAnimation rotation = new Rotate3dAnimation(start, end,centerX, centerY);rotation.setDuration(500);rotation.setFillAfter(true);// 监听第二个动画if (start == 90.0f || start == -90.0f)rotation.setAnimationListener(new DisplayNextView());iv.startAnimation(rotation);}/** 动画监听器 **/private final class DisplayNextView implements Animation.AnimationListener {@Overridepublic void onAnimationEnd(Animation arg0) {flag = false;}@Overridepublic void onAnimationRepeat(Animation arg0) {}@Overridepublic void onAnimationStart(Animation arg0) {flag = true;}}/** 定时旋转线程 **/private final class OnFlingListener extends Thread {private boolean isRunning = true;@Overridepublic void run() {start = System.currentTimeMillis();end = start;// 标识是否到达最后boolean bol = false;while (isRunning) {end = System.currentTimeMillis();// 如果没有动画正在进行且用户空闲操作时间超过3秒if (!flag && (end - start > 3000)) {if (!bol) {if (currentScreenIndex < childCount - 1) {start = end;iHandler.sendEmptyMessage(RIGHT);} else if (currentScreenIndex == childCount - 1) {bol = true;}} else {if (currentScreenIndex > 0) {start = end;iHandler.sendEmptyMessage(LEFT);} else if (currentScreenIndex == 0) {bol = false;}}}}}// 关闭监听线程@SuppressWarnings("unused")public void shutDown() {isRunning = false;}}/** 底部圆圈显示回调接口 **/interface ScrollToScreenCallback {public void callback(int currentIndex);}}

PageControlView

package org.wp.activity;import org.wp.activity.MainActivity.ScrollToScreenCallback;import android.content.Context;import android.util.AttributeSet;import android.widget.ImageView;import android.widget.LinearLayout;public class PageControlView extends LinearLayout implements ScrollToScreenCallback {/** Context对象 **/private Context context;/** 圆圈的数量 **/private int count;public PageControlView(Context context, AttributeSet attrs) {super(context, attrs);this.context = context;}@Overridepublic void callback(int currentIndex) {generatePageControl(currentIndex);}public void generatePageControl(int currentIndex) {this.removeAllViews();for (int i = 0; i < this.count; i++) {ImageView iv = new ImageView(context);if (currentIndex == i) {iv.setImageResource(R.drawable.page_indicator_focused);} else {iv.setImageResource(R.drawable.page_indicator);}this.addView(iv);}}/** 设置圆圈数量 **/public void setCount(int count) {this.count = count;}}

Rotate3dAnimation

package org.wp.activity;import android.graphics.Camera;import android.graphics.Matrix;import android.view.animation.Animation;import android.view.animation.Transformation;public class Rotate3dAnimation extends Animation {/** 开始旋转的角度 **/private final float mFromDegrees;/** 旋转结束的角度 **/private final float mToDegrees;/** 图片中心X坐标 **/private final float mCenterX;/** 图片中心Y坐标 **/private final float mCenterY;/** 视角 **/private Camera mCamera;public Rotate3dAnimation(float fromDegrees, float toDegrees, float centerX, float centerY) {this.mFromDegrees = fromDegrees;this.mToDegrees = toDegrees;this.mCenterX = centerX;this.mCenterY = centerY;}@Overridepublic void initialize(int width, int height, int parentWidth, int parentHeight) {super.initialize(width, height, parentWidth, parentHeight);mCamera = new Camera();}@Overrideprotected void applyTransformation(float interpolatedTime, Transformation t) {final float fromDegrees = mFromDegrees;// 生成中间角度float degrees = fromDegrees + ((mToDegrees - fromDegrees) * interpolatedTime);final float centerX = mCenterX;final float centerY = mCenterY;final Camera camera = mCamera;final Matrix matrix = t.getMatrix();if (degrees >= 76.0f) {// 旋转角度大于76度保持90度degrees = 90.0f;camera.save();camera.rotateY(degrees);camera.getMatrix(matrix);camera.restore();} else if (degrees <= -76.0f) {// 旋转角度小于-76度保持-90度degrees = -90.0f;camera.save();camera.rotateY(degrees);camera.getMatrix(matrix);camera.restore();} else {camera.save();// 缩小camera.translate(0, 0, centerX);camera.rotateY(degrees);// 旋转产生偏移效果camera.translate(0, 0, -centerX);camera.getMatrix(matrix);camera.restore();}matrix.preTranslate(-centerX, -centerY);matrix.postTranslate(centerX, centerY);}}

anim

shake.xml

<?xml version="1.0" encoding="utf-8"?><!-- fromXDelta x轴开始位置toXDelta x轴结束位置 duration 执行时间 interpolator 动画变化率 --><translate xmlns:android="http://schemas.android.com/apk/res/android"android:fromXDelta="0" android:toXDelta="10" android:duration="850" android:interpolator="@anim/cycle_5" />

cycle_5.xml

<?xml version="1.0" encoding="utf-8"?><cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android" android:cycles="5" />

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