Android实现应用程序的闪屏效果

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/bg_app" android:orientation="vertical" ></LinearLayout>

package com.example.bamboo_splash; import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.Animation.AnimationListener; public class WelcomeActivity extends Activity {   @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_welcome); /** 方式一*/// AlphaAnimation animation=new AlphaAnimation(0.3f, 1f);// animation.setDuration(3000);// animation.setAnimationListener(new AnimationListener() {// // @Override// public void onAnimationStart(Animation animation) {// // }// // @Override// public void onAnimationRepeat(Animation animation) {// // }// /** 动画结束执行的方法*/// @Override// public void onAnimationEnd(Animation animation) {// redirectTo();// }// });  /** 方式二*/ new Handler().postDelayed(new Runnable() {  @Override public void run() { redirectTo(); } }, 3000); } /** * 即将跳转的页面 */ public void redirectTo(){ Intent intent=new Intent(WelcomeActivity.this, MainActivity.class); startActivity(intent); finish(); }}