翻转动画(转)

通用翻转类:

package com.example.imagerotate;

import android.graphics.Camera;
import android.graphics.Matrix;
import android.view.animation.Animation;
import android.view.animation.Transformation;

public class Rotate3d extends Animation {
	private final float mFromDegrees;
	private final float mToDegrees;
	private final float mCenterX;
	private final float mCenterY;
	private final float mDepthZ;//深度，就相当于把图片往多小里缩
	private final boolean mReverse;
	private Camera mCamera;

	public Rotate3d(float fromDegrees, float toDegrees, float centerX,
			float centerY, float depthZ, boolean reverse) {
		mFromDegrees = fromDegrees;
		mToDegrees = toDegrees;
		mCenterX = centerX;
		mCenterY = centerY;
		mDepthZ = depthZ;
		mReverse = reverse;
	}

	@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 fromDegrees = mFromDegrees;
		float degrees = fromDegrees
				+ ((mToDegrees - fromDegrees) * interpolatedTime);
		final float centerX = mCenterX;
		final float centerY = mCenterY;
		final Camera camera = mCamera;
		final Matrix matrix = t.getMatrix();
		camera.save();
		if (mReverse) {
			camera.translate(0.0f, 0.0f, mDepthZ * interpolatedTime);
		} else {
			camera.translate(0.0f, 0.0f, mDepthZ * (1.0f - interpolatedTime));
		}
		camera.rotateY(degrees);
		camera.getMatrix(matrix);
		camera.restore();

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

调用:

final Rotate3d rotation = new Rotate3d(0, 90, 0.5f, 0.5f,
				310.0f, true);
		rotation.setDuration(1000); // 可设置翻转的时间，以ms为单位
		rotation.setFillAfter(true);//停在动画转到的位置
		rotation.setInterpolator(new AccelerateInterpolator());
		rotation.setAnimationListener(new DisplayNextView());
		mContainer.startAnimation(rotation); // 开始翻转前90度

详见附件