本文实例分析了Android开发中PopupWindow用法。分享给大家供大家参考，具体如下：
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private TextView tv_appmanager_title;
private ListView lv_app_manager;
private LinearLayout ll_appmanager_loading;
private AppManagerProvider provider;
private List<AppManagerInfo> infos ;
private AppManagerAdapter adapter;
private PopupWindow localPopupWindow;
private Handler handler = new Handler(){
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case Constants.MSG_APP_MANAGER:
ll_appmanager_loading.setVisibility(View.INVISIBLE);
adapter = new AppManagerAdapter(infos, AppManagerActivity.this);
lv_app_manager.setAdapter(adapter);
break;
}
};
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.appmanager);
lv_app_manager = (ListView) this.findViewById(R.id.lv_app_manager);
ll_appmanager_loading = (LinearLayout) this.findViewById(R.id.ll_appmanager_loading);
ll_appmanager_loading.setVisibility(View.VISIBLE);
new Thread(){
public void run() {
provider = new AppManagerProvider(AppManagerActivity.this);
infos = provider.getAppManagerInfo();
Message msg = new Message();
msg.what = Constants.MSG_APP_MANAGER;
handler.sendMessage(msg);
};
}.start();
lv_app_manager.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if(null != localPopupWindow){
localPopupWindow.dismiss();
localPopupWindow = null;
}
int [] location = new int[2];
view.getLocationInWindow(location);
int x = location[0] + 60;
int y = location[1];
TextView tv = new TextView(AppManagerActivity.this);
AppManagerInfo info = (AppManagerInfo) lv_app_manager.getItemAtPosition(position);
tv.setText(info.getPackName());
tv.setTextSize(20);
tv.setTextColor(Color.RED);
localPopupWindow = new PopupWindow(tv, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
Drawable background = new ColorDrawable(Color.GRAY);
localPopupWindow.setBackgroundDrawable(background);
localPopupWindow.showAtLocation(tv, 51, x, y);
}
});
lv_app_manager.setOnScrollListener(new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if(null != localPopupWindow){
localPopupWindow.dismiss();
localPopupWindow = null;
}
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
if(null != localPopupWindow){
localPopupWindow.dismiss();
localPopupWindow = null;
}
}
});
}
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希望本文所述对大家Android程序设计有所帮助。