我的android学习经历39

关于像第一次进qq一样的那个渐变企鹅图的制作 渐变动画

package com.moonweather.app.activity;

import com.moonweather.app.R;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.widget.ImageView;

public class ShouyeActivity extends Activity {
	private ImageView ima;;

	protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.shouye);
        ima=(ImageView) findViewById(R.id.ima);
        AlphaAnimation alphaAnimation = new AlphaAnimation(0.3f, 1.0f);
        alphaAnimation.setDuration(3*1000);
        alphaAnimation.setRepeatCount(0);
        ima.startAnimation(alphaAnimation);
        alphaAnimation.setAnimationListener(new Animation.AnimationListener() {

            @Override
            public void onAnimationStart(Animation animation) {

            }
            @Override
            public void onAnimationRepeat(Animation animation) {

            }
            @Override
            public void onAnimationEnd(Animation animation) {
//这里可以写动画结束后的事件，比如说跳转
            	Intent intent=new Intent(ShouyeActivity.this,ChooseAreaActivity.class);
            	startActivity(intent);
            	ShouyeActivity.this.finish();
            }
        });
    }
}