Android淡入淡出欢迎界面

来源：互联网发布：java jvm面试题编辑：程序博客网时间：2024/05/21 07:02
直接上代码，比较简单：
package com.example.loadingactivity;import javax.security.auth.PrivateCredentialPermission;import android.animation.ObjectAnimator;import android.annotation.SuppressLint;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.view.Window;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.Animation.AnimationListener;import android.widget.ImageView;public class LoadingActivity extends Activity {    private ImageView iv;    @SuppressLint("NewApi")     @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        this.requestWindowFeature(Window.FEATURE_NO_TITLE);        setContentView(R.layout.loading);        iv=(ImageView) findViewById(R.id.iv);        AlphaAnimation alphaAnimation=new AlphaAnimation(0.0f, 1.0f);        alphaAnimation.setDuration(8000);        iv.startAnimation(alphaAnimation);        alphaAnimation.setAnimationListener(new AnimationListener() {            @Override            public void onAnimationStart(Animation animation) {                // TODO Auto-generated method stub            }            @Override            public void onAnimationRepeat(Animation animation) {                // TODO Auto-generated method stub            }            @Override            public void onAnimationEnd(Animation animation) {                // TODO Auto-generated method stub                startActivity(new Intent(LoadingActivity.this, MainActivity.class));                LoadingActivity.this.finish();            }        });//      Handler handler=new Handler();//      handler.postDelayed(new Runnable() {//          //          @Override//          public void run() {//              // TODO Auto-generated method stub//              //启动mainActivity//              startActivity(new Intent(LoadingActivity.this, MainActivity.class));//              LoadingActivity.this.finish();//          }//      }, 2000);    }}
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