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[操作系统]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();      }    });  }}