Android Gallery(超豪华胜优酷,自动无限循环播放+3D+阴影,有图有易做图)

---------------------------------------DetialGallery.java

package gongzibai.co.cc;

import android.content.Context;
import android.graphics.Camera;
import android.graphics.Matrix;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Transformation;
import android.widget.Gallery;
import android.widget.ImageView;

public class DetialGallery extends
Gallery {
private Camera mCamera = new Camera();// 相机类
private int mMaxRotationAngle = 60;// 最大转动角度
private int mMaxZoom = -380;// //最大缩放值
private int mCoveflowCenter;// 半径值
private boolean mAlphaMode = true;
private boolean mCircleMode = false;

public DetialGallery(
Context context,
AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
}

public int getMaxRotationAngle() {
return mMaxRotationAngle;
}

public void setMaxRotationAngle(
int maxRotationAngle) {
mMaxRotationAngle = maxRotationAngle;
}

public boolean getAlphaMode() {
return mAlphaMode;
}

public void setAlphaMode(
   boolean isAlpha) {
mAlphaMode = isAlpha;
}

public boolean getCircleMode() {
        return mCircleMode;
    }

    public void setCircleMode(boolean isCircle) {
        mCircleMode = isCircle;
    }

public int getMaxZoom() {
return mMaxZoom;
}

public void setMaxZoom(int maxZoom) {
mMaxZoom = maxZoom;
}

private int getCenterOfCoverflow() {
return (getWidth()
- getPaddingLeft() - getPaddingRight())
/ 2 + getPaddingLeft();
}

private static int getCenterOfView(
   View view) {
System.out
    .println("view left :"
      + view.getLeft());
System.out
    .println("view width :"
      + view.getWidth());
return view.getLeft()
    + view.getWidth() / 2;
}

// 控制gallery中每个图片的旋转(重写的gallery中方法)
protected boolean getChildStaticTransformation(
   View child, Transformation t) {
// 取得当前子view的半径值
final int childCenter = getCenterOfView(child);
System.out
    .println("childCenter："
      + childCenter);
final int childWidth = child
    .getWidth();
// 旋转角度
int rotationAngle = 0;
// 重置转换状态
t.clear();
// 设置转换类型
t.setTransformationType(Transformation.TYPE_MATRIX);
// 如果图片位于中心位置不需要进行旋转
if (childCenter == mCoveflowCenter) {
   transformImageBitmap(
     (ImageView) child,
     t, 0);
} else {
   // 根据图片在gallery中的位置来计算图片的旋转角度
   rotationAngle = (int) (((float) (mCoveflowCenter - childCenter) / childWidth) * mMaxRotationAngle);
   System.out
     .println("rotationAngle:"
       + rotationAngle);
   // 如果旋转角度绝对值大于最大旋转角度返回（-mMaxRotationAngle或mMaxRotationAngle;）
   if (Math.abs(rotationAngle) > mMaxRotationAngle) {
    rotationAngle = (rotationAngle < 0) ? -mMaxRotationAngle
      : mMaxRotationAngle;
   }
   transformImageBitmap(
     (ImageView) child,
     t, rotationAngle);
}
return true;
}

protected void onSizeChanged(int w,
int h, int oldw, int oldh) {
mCoveflowCenter = getCenterOfCoverflow();
super.onSizeChanged(w, h, oldw,
oldh);
}

private void transformImageBitmap(
   ImageView child,
   Transformation t,
   int rotationAngle) {
// 对效果进行保存
mCamera.save();
final Matrix imageMatrix = t
    .getMatrix();
// 图片高度
final int imageHeight = child
    .getLayoutParams().height;
// 图片宽度
final int imageWidth = child
    .getLayoutParams().width;

// 返回旋转角度的绝对值
final int rotation = Math
.abs(rotationAngle);

// 在Z轴上正向移动camera的视角，实际效果为放大图片。
// 如果在Y轴上移动，则图片上下移动；X轴上对应图片左右移动。
mCamera.translate(0.0f, 0.0f,
    100.0f);
if (rotation <= mMaxRotationAngle) {
   float zoomAmount = (float) (mMaxZoom + (rotation * 1.5));
   mCamera.translate(0.0f,
     0.0f, zoomAmount);
   if (mCircleMode) {
    if (rotation < 40)
     mCamera.translate(
       0.0f, 155,
       0.0f);
    else
     mCamera.translate(
       0.0f,
       (255 - rotation * 2.5f),
       0.0f);
   }
   if (mAlphaMode) {
    ((ImageView) (child))
      .setAlpha((int) (255 - rotation * 2.5));
   }
}

// As the angle of the view gets less, zoom in
// if (rotation < mMaxRotationAngle) {
// float zoomAmount = (float) (mMaxZoom + (rotation * 1.5));
// mCamera.translate(0.0f,
// 0.0f, zoomAmount);
// if (mAlphaMode) {
// ((ImageView) (child))
// .setAlpha((int) (255 - rotation * 2.5));
// }
//
// }
// 在Y轴上旋转，对应图片竖向向里翻转。
// 如果在X轴上旋转，则对应图片横向向里翻转。
mCamera.rotateY(rotationAngle);
mCamera.getMatrix(imageMatrix);
imageMatrix.preTranslate(
    -(imageWidth / 2),
    -(imageHeight / 2));
imageMatrix.postTranslate(
    (imageWidth / 2),
    (imageHeight / 2));
mCamera.restore();
}

@Override
public boolean onFling(
   MotionEvent e1,
   MotionEvent e2,
   float velocityX,
   float velocityY) {
// TODO Auto-generated method stub
return false;
}
}

---------------------

补充：移动开发 , Android ,