Android 3D做一个图片切换

Question

三张图片 中间靠前 两边靠后

Answer 1

[code="java"]1.Layout3D.java

package cn.com;

import Android.app.Activity;

import Android.os.Bundle;

import Android.view.View;

import Android.view.ViewGroup;

import Android.widget.Button;

public class Layout3D extends Activity {

private int mCenterX = 160;  
private int mCenterY = 0;  
private ViewGroup layout1;  
private ViewGroup layout2;  

private Rotate3d leftAnimation;  
private Rotate3d rightAnimation;  

/** Called when the activity is first created. */  
@Override  
public void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
    setContentView(R.layout.main);  

    initFirst();  

    layout1 = (ViewGroup) findViewById(R.id.layout1);  
    Button b1 = (Button) findViewById(R.id.button1);  
    b1.setEnabled(true);  
    b1.setOnClickListener(new Button.OnClickListener() {  
        public void onClick(View v) {  
            leftMoveHandle();  
            v.setEnabled(false);  
        }  
    });  
}  

public void initFirst(){  
    leftAnimation = new Rotate3d(0, -90, 0.0f, 0.0f, mCenterX, mCenterY);  
    rightAnimation = new Rotate3d(90, 0, 0.0f, 0.0f, mCenterX, mCenterY);  
    leftAnimation.setFillAfter(true);  
    leftAnimation.setDuration(1000);  
    rightAnimation.setFillAfter(true);  
    rightAnimation.setDuration(1000);  
}  

public void initSecond(){  
    leftAnimation = new Rotate3d(-90, 0, 0.0f, 0.0f, mCenterX, mCenterY);  
    rightAnimation = new Rotate3d(0, 90, 0.0f, 0.0f, mCenterX, mCenterY);  
    leftAnimation.setFillAfter(true);  
    leftAnimation.setDuration(1000);  
    rightAnimation.setFillAfter(true);  
    rightAnimation.setDuration(1000);  
}  

public void jumpToLayout1(Rotate3d leftAnimation) {  
    setContentView(R.layout.main);  

    layout1 = (ViewGroup) findViewById(R.id.layout1);  
    layout1.startAnimation(leftAnimation);  

    Button b1 = (Button) findViewById(R.id.button1);  
    b1.setEnabled(true);  
    b1.setOnClickListener(new Button.OnClickListener() {  
        public void onClick(View v) {  
            leftMoveHandle();  
        }  
    });  
}  

public void jumpToLayout2(Rotate3d rightAnimation) {  
    setContentView(R.layout.mylayout);  
    layout2 = (ViewGroup) findViewById(R.id.layout2);  
    layout2.startAnimation(rightAnimation);  

    Button b2 = (Button) findViewById(R.id.button2);  
    b2.setEnabled(true);  
    b2.setOnClickListener(new Button.OnClickListener() {  
        public void onClick(View v) {  
            rightMoveHandle();  
        }  
    });  
}  

public void leftMoveHandle() {  
    initFirst();  
    layout1.startAnimation(leftAnimation);  
    jumpToLayout2(rightAnimation);  
}  

public void rightMoveHandle() {  
    initSecond();  
    layout2.startAnimation(rightAnimation);  
    jumpToLayout1(leftAnimation);  
}  

}

Rotate3d.java

package cn.com;

import Android.graphics.Camera;

import Android.graphics.Matrix;

import Android.view.animation.Animation;

import Android.view.animation.Transformation;

public class Rotate3d extends Animation {

private float mFromDegree;

private float mToDegree;

private float mCenterX;

private float mCenterY;

private float mLeft;

private float mTop;

private Camera mCamera;

private static final String TAG = "Rotate3d";

public Rotate3d(float fromDegree, float toDegree, float left, float top,  
        float centerX, float centerY) {  
    this.mFromDegree = fromDegree;  
    this.mToDegree = toDegree;  
    this.mLeft = left;  
    this.mTop = top;  
    this.mCenterX = centerX;  
    this.mCenterY = centerY;  

}  

@Override  
public void initialize(int width, int height, int parentWidth,  
        int parentHeight) {  
    super.initialize(width, height, parentWidth, parentHeight);  
    mCamera = new Camera();  
}  

@Override  
protected void applyTransformation(float interpolatedTime, Transformation t) {  
    final float FromDegree = mFromDegree;  
    float degrees = FromDegree + (mToDegree - mFromDegree)  
            * interpolatedTime;  
    final float centerX = mCenterX;  
    final float centerY = mCenterY;  
    final Matrix matrix = t.getMatrix();  

    if (degrees <= -76.0f) {  
        degrees = -90.0f;  
        mCamera.save();  
        mCamera.rotateY(degrees);  
        mCamera.getMatrix(matrix);  
        mCamera.restore();  
    } else if (degrees >= 76.0f) {  
        degrees = 90.0f;  
        mCamera.save();  
        mCamera.rotateY(degrees);  
        mCamera.getMatrix(matrix);  
        mCamera.restore();  
    } else {  
        mCamera.save();  
        //   
        mCamera.translate(0, 0, centerX);  
        mCamera.rotateY(degrees);  
        mCamera.translate(0, 0, -centerX);  
        mCamera.getMatrix(matrix);  
        mCamera.restore();  
    }  

    matrix.preTranslate(-centerX, -centerY);  
    matrix.postTranslate(centerX, centerY);  
}  

}

3.main.xml

<?xml version="1.0" encoding="utf-8"?>

Android:id="@+id/layout1" android:layout_height="fill_parent"
Android:background="@drawable/black" xmlns:android="http://schemas.android.com/apk/res/android">

Android:layout_height="wrap_content" android:text="Go to Layout2">



Android:layout_width="186px" android:layout_height="29px"
Android:text="@string/layout1" android:layout_below="@+id/button1">



mylayout.xml

<?xml version="1.0" encoding="utf-8"?>

Android:id="@+id/layout2" android:layout_height="fill_parent"
Android:background="@drawable/white" xmlns:android="http://schemas.android.com/apk/res/android">

Android:layout_height="wrap_content" android:text="Go to Layout1">



Android:layout_width="186px" android:layout_height="29px"
Android:textColor="@drawable/black" android:text="@string/layout2"
Android:layout_below="@+id/button2">





color.xml

<?xml version="1.0" encoding="utf-8"?>



#000000

#FFFFFFFF



[/code]