新建动画类xml文件
<?xml version= "1.0" encoding ="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >
<alpha
android:duration="2000"
android:fromAlpha="0.3"
android:toAlpha="1.0" />
<translate
android:duration="1000"
android:fromYDelta="80%" />
</set>
在Activity中载入后启动动画，可添加动画监听器，监听当动画结束后跳转到主界面。
Animation scale = AnimationUtils. loadAnimation(this, R.anim.scale_anim);
welcomeImg.startAnimation(scale);
scale.setAnimationListener( new AnimationListener() {
@Override
public void onAnimationStart(Animation
animation) {
animation) {
}
@Override
public void onAnimationRepeat(Animation
animation) {
animation) {
}
@Override
public void onAnimationEnd(Animation
animation) {
animation) {
startActivity( new Intent(WelcomeActivity.this ,LoginActivity.class));
finish();
}
});