android简单Logo

开机动画,渐变

logo.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:background="@android:color/white"
android:orientation="vertical"
android:gravity="center"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageView
android:id="@+id/logo_bg"
android:src="@drawable/index"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>

public class LogoActivity extends BaseActivity {

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.logo);
//3秒钟的渐变动画
AlphaAnimation aa=new AlphaAnimation(0.1f,1.0f);
aa.setDuration(3000);
View v=this.findViewById(R.id.logo_bg);
v.startAnimation(aa);
aa.setAnimationListener(new AnimationListener()
{

@Override
public void onAnimationEnd(Animation animation) {
// TODO Auto-generated method stub
finish();
Intent it=new Intent(LogoActivity.this,LoginAct.class);
LogoActivity.this.startActivity(it);
}

@Override
public void onAnimationRepeat(Animation animation) {
// TODO Auto-generated method stub

}

@Override
public void onAnimationStart(Animation animation) {
// TODO Auto-generated method stub

}
}
);

}

}

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