@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.app_manager);
lv_app_manager = (ListView) findViewById(R.id.lv_app_manager);
ll_app_manager_progress = (LinearLayout) findViewById(R.id.ll_app_manager_progress);
ll_app_manager_progress.setVisibility(View.VISIBLE);
tv_app_title = (TextView) findViewById(R.id.tv_app_title);
tv_app_title.setOnClickListener(this);
initUI(false);
lv_app_manager.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
dismissPopupWindow();
//用来存放当前的item的坐标值，第一个是x的坐标，第二个是y的坐标
int[] location = new int[2];
//把当前的item的坐标放到int数组里面
view.getLocationInWindow(location);
View popupView = View.inflate(AppManagerActivity.this,R.layout.popup_item,null);
LinearLayout ll_app_unistall = (LinearLayout) popupView.findViewById(R.id.ll_app_uninstall);
LinearLayout ll_app_run = (LinearLayout) popupView.findViewById(R.id.ll_app_start);
LinearLayout ll_app_share = (LinearLayout) popupView.findViewById(R.id.ll_app_share);
ll_app_unistall.setOnClickListener(AppManagerActivity.this);
ll_app_run.setOnClickListener(AppManagerActivity.this);
ll_app_share.setOnClickListener(AppManagerActivity.this);
//拿到当时点击的条目，并设置到view里面
AppInfo info = (AppInfo) lv_app_manager.getItemAtPosition(position);
ll_app_unistall.setTag(info);
ll_app_run.setTag(info);
ll_app_share.setTag(info);
//添加动画
LinearLayout ll_app_popup = (LinearLayout) popupView.findViewById(R.id.ll_app_popup);
ScaleAnimation scaleAnimation = new ScaleAnimation(0.0f, 1.0f,0.0f,1.0f);
scaleAnimation.setDuration(300);
//new 一个PopupWindow出来
popupWindow = new PopupWindow(popupView,230,70);
//一定要给popupWindow设置一个背景图片，不然的话，会有很多未知的问题的
//如没办法给它加上动画，还有显示会有问题等。
//如果我们没有要设置的图片，那么我们就给它加上一个透明的背景图片
Drawable drawable = new ColorDrawable(Color.TRANSPARENT);
popupWindow.setBackgroundDrawable(drawable);
int x = location[0] + 60;
int y = location[1];
//把popupWindow显示出来
popupWindow.showAtLocation(view, Gravity.LEFT|Gravity.TOP, x, y);
//开启动画
ll_app_popup.startAnimation(scaleAnimation);
}
});
//当listView滚动的时候调用方法
lv_app_manager.setOnScrollListener(new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// TODO Auto-generated method stub
dismissPopupWindow();
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// TODO Auto-generated method stub
dismissPopupWindow();
}
});
}
//判断PopupWindow是不是存在，存在就把它dismiss掉
private void dismissPopupWindow() {
if(popupWindow != null){
popupWindow.dismiss();
popupWindow = null;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if("用户应用".equals(tv_app_title.getText().toString().trim()))
{
initUI(true);
adapter.setAppInfos(getUserApp());
//通知ListView数据发生了变化
adapter.notifyDataSetChanged();
}
else
{
initUI(false);
}
}
@Override
protected void onDestroy()
{
dismissPopupWindow();
super.onDestroy();
}
运行效果：<img src="http://img.blog.csdn.net/20150121222619613?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvenFzNjI3NjExMzA=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />
————————————————————————————————————————————————————————————————————
2.setTag(),getTag()的在popupWindow
（1）View视图设置Tag()，方便以后获取
<pre name="code" class="java">lv_app_manager.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
dismissPopupWindow();
//用来存放当前的item的坐标值，第一个是x的坐标，第二个是y的坐标
int[] location = new int[2];
//把当前的item的坐标放到int数组里面
view.getLocationInWindow(location);
View popupView = View.inflate(AppManagerActivity.this,R.layout.popup_item,null);
LinearLayout ll_app_unistall = (LinearLayout) popupView.findViewById(R.id.ll_app_uninstall);
LinearLayout ll_app_run = (LinearLayout) popupView.findViewById(R.id.ll_app_start);
LinearLayout ll_app_share = (LinearLayout) popupView.findViewById(R.id.ll_app_share);
ll_app_unistall.setOnClickListener(AppManagerActivity.this);
ll_app_run.setOnClickListener(AppManagerActivity.this);
ll_app_share.setOnClickListener(AppManagerActivity.this);
//拿到当时点击的条目，并设置到view里面
AppInfo info = (AppInfo) lv_app_manager.getItemAtPosition(position);
ll_app_unistall.setTag(info);
ll_app_run.setTag(info);
ll_app_share.setTag(info);
（2）View视图获得Tag()中的内容
@Override
<span style="white-space:pre"> </span>public void onClick(View v)
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>//加载过程中的时候，不能点击
<span style="white-space:pre"> </span>if(!flag)
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>return;
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>AppInfo item = (AppInfo) v.getTag();
<span style="white-space:pre"> </span>switch(v.getId())
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>//当我们点击那个标题栏之后，我们就只把用户的应用列出来
<span style="white-space:pre"> </span>case R.id.tv_app_title :
<span style="white-space:pre"> </span>if("所有应用".equals(tv_app_title.getText().toString().trim()))
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>tv_app_title.setText("用户应用");
<span style="white-space:pre"> </span>adapter.setAppInfos(getUserApp());
<span style="white-space:pre"> </span>//通知ListView数据发生了变化
<span style="white-space:pre"> </span>adapter.notifyDataSetChanged();
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>else
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>tv_app_title.setText("所有应用");
<span style="white-space:pre"> </span>adapter.setAppInfos(list);
<span style="white-space:pre"> </span>adapter.notifyDataSetChanged();
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>break;
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>case R.id.ll_app_uninstall :
<span style="white-space:pre"> </span>if(item.isSystemApp())
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>Toast.makeText(AppManagerActivity.this, "不能卸载系统的应用程序", Toast.LENGTH_SHORT).show();
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>else
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>String strUri = "package:" + item.getPackageName();
<span style="white-space:pre"> </span>Uri uri = Uri.parse(strUri);
<span style="white-space:pre"> </span>Intent deleteIntent = new Intent();
<span style="white-space:pre"> </span>deleteIntent.setAction(Intent.ACTION_DELETE);
<span style="white-space:pre"> </span>deleteIntent.setData(uri);
<span style="white-space:pre"> </span>startActivityForResult(deleteIntent, 0);
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>break;
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>case R.id.ll_app_start :
<span style="white-space:pre"> </span>try
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>//拿到这个包对应的PackageInfo对象，这里我们指定了两个flag，
<span style="white-space:pre"> </span>//一个就是之前讲过的，所有的安装过的应用程序都找出来，包括卸载了但没清除数据的
<span style="white-space:pre"> </span>//一个就是指定它去扫描这个应用的AndroidMainfest文件时候的activity节点，
<span style="white-space:pre"> </span>//这样我们才能拿到具有启动意义的ActivityInfo，如果不指定，是无法扫描出来的
<span style="white-space:pre"> </span>PackageInfo packageInfo = getPackageManager().getPackageInfo(item.getPackageName(), PackageManager.GET_UNINSTALLED_PACKAGES | PackageManager.GET_ACTIVITIES);
<span style="white-space:pre"> </span>//扫描出来的所以activity节点的信息
<span style="white-space:pre"> </span>ActivityInfo[] activityInfos = packageInfo.activities;
<span style="white-space:pre"> </span>//有些应用是无法启动的，所以我们就要判断一下
<span style="white-space:pre"> </span>if(activityInfos != null && activityInfos.length > 0)
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>//在扫描出来的应用里面，第一个是具有启动意义的
<span style="white-space:pre"> </span>ActivityInfo startActivity = activityInfos[0];
<span style="white-space:pre"> </span>//设置好Intent，启动activity
<span style="white-space:pre"> </span>Intent intent = new Intent();
<span style="white-space:pre"> </span>intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
<span style="white-space:pre"> </span>intent.setClassName(item.getPackageName(), startActivity.name);
<span style="white-space:pre"> </span>startActivity(intent);
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>else
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>Toast.makeText(AppManagerActivity.this, "这个应用程序无法启动", Toast.LENGTH_SHORT).show();
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>catch (NameNotFoundException e)
<span style="white-space:pre"> </span>{
<span style="white-space:pre"> </span>e.printStackTrace();
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>break;
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>case R.id.ll_app_share :
<span style="white-space:pre"> </span>Intent shareIntent = new Intent();
<span style="white-space:pre"> </span>//设置Intent的action
<span style="white-space:pre"> </span>shareIntent.setAction(Intent.ACTION_SEND);
<span style="white-space:pre"> </span>//设定分享的类型是纯文本的
<span style="white-space:pre"> </span>shareIntent.setType("text/plain");
<span style="white-space:pre"> </span>//设置分享主题
<span style="white-space:pre"> </span>shareIntent.putExtra(Intent.EXTRA_SUBJECT, "分享");
<span style="white-space:pre"> </span>//设置分享的文本
<span style="white-space:pre"> </span>shareIntent.putExtra(Intent.EXTRA_TEXT, "有一个很好的应用程序哦！" + item.getAppName());
<span style="white-space:pre"> </span>//shareIntent = Intent.createChooser(shareIntent, "分享");
<span style="white-space:pre"> </span>startActivity(shareIntent);
<span style="white-space:pre"> </span>break;
<span style="white-space:pre"> </span>
<span style="white-space:pre"> </span>default :
<span style="white-space:pre"> </span>break;
<span style="white-space:pre"> </span>}
<span style="white-space:pre"> </span>dismissPopupWindow();
<span style="white-space:pre"> </span>}