//Java代码
private void showPopupWindow(View view) { // 一个自定义的布局,作为显示的内容
View contentView = LayoutInflater.from(getActivity()).inflate(
R.layout.layout_popwindow1, null); final PopupWindow popupWindow = new PopupWindow(contentView,
ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT, true); popupWindow.setTouchable(true);
popupWindow.setAnimationStyle(R.style.AnimationPreview); popupWindow.setTouchInterceptor(new View.OnTouchListener() { @Override
public boolean onTouch(View v, MotionEvent event) { Log.i("mengdd", "onTouch : "); return false;
// 这里如果返回true的话,touch事件将被拦截
// 拦截后 PopupWindow的onTouchEvent不被调用,这样点击外部区域无法dismiss
}
}); // 如果不设置PopupWindow的背景,无论是点击外部区域还是Back键都无法dismiss弹框
// 我觉得这里是API的一个bug
popupWindow.setBackgroundDrawable(getResources().getDrawable(
R.drawable.whitebg)); // 设置好参数之后再show
//显示popupWindow在界面的位置
popupWindow.showAtLocation(MusicPlayer_Fragment.this.root, Gravity.BOTTOM| Gravity.CENTER_HORIZONTAL, 0, 0);
}   //Sytle样式
    style name="AnimationPreview" parent="android:Animation">
    <item name="android:windowEnterAnimation">@anim/pop_enter_anim</item>
     <item name="android:windowExitAnimation">@anim/pop_exit_anim</item>
    </style>
  //在anim下建立动画
 
名字为:pop_enter_anim.xml
 
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"> <translate
android:duration="200"
android:fromYDelta="100%p"
android:toYDelta="0" />
<alpha
android:duration="200"
android:fromAlpha="0.0"
android:toAlpha="1.0" />
</set> //名字为
pop_exit_anim
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="200"
android:fromYDelta="0"
android:toYDelta="50%p" />
<alpha
android:duration="200"
android:fromAlpha="1.0"
android:toAlpha="0.0" />
</set>
05-04 06:20