Android实现闪屏效果

 
  ShanP01
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  WelcomeActivity
 

android:theme="@android:style/Theme.NoTitleBar" 

public class WelcomeActivity extends Activity {
 private ImageView welcomeImage;
    @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_welcome);
    welcomeImage=(ImageView) this.findViewById(R.id.welcome);
    AlphaAnimation alphaAnimation=new AlphaAnimation(0.1f, 1.0f);////定义一个具有淡入效果的对象
    alphaAnimation.setDuration(3000);//定义闪屏时间（毫秒）
    welcomeImage.startAnimation(alphaAnimation);
    alphaAnimation.setAnimationListener(new AnimationListener() {
  
  @Override
  public void onAnimationStart(Animation animation) {
  
  
  }
  
  @Override
  public void onAnimationRepeat(Animation animation) {
  
  
  }
  
  @Override
  public void onAnimationEnd(Animation animation) {
  Intent intent=new Intent();
  intent.setClass(WelcomeActivity.this, MainActivity.class);//定义闪屏效果从哪一界面跳到哪一页面
  startActivity(intent);
  finish();
  
  }
 });
  }
 
  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_welcome, menu);
    return true;
  }
  
}

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_welcome); 
    welcomeImage=(ImageView) this.findViewById(R.id.welcome);   
    AlphaAnimation alphaAnimation=new AlphaAnimation(0.1f,1.0f);////定义1个具有淡入效果的对象 
    welcomeImage.startAnimation(alphaAnimation); 
    new Handler().postDelayed(new Runnable() {    
      @Override 
      public void run() { 
        Intent intent=new Intent(); 
        intent.setClass(WelcomeActivity.this, MainActivity.class); 
        startActivity(intent); 
        finish(); 
      } 
    },3000);//细心不要漏了 
  }