Android获取分享应用列表详解及实例

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"   android:layout_width="fill_parent"    android:layout_height="wrap_content" >  <ListView      android:id="@+id/share_list"      android:background="#2F4F4F"      android:fadingEdge="none"      android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:cacheColorHint="#00000000"      android:divider="#E2DD75"      android:dividerHeight="1.0dip"      android:headerDividersEnabled="true"      android:footerDividersEnabled="false" /> </LinearLayout> 

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"   android:gravity="center_vertical"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:padding="2.0dip" >   <ImageView      android:id="@+id/share_item_icon"      android:layout_width="32.0dip"      android:layout_height="32.0dip"      android:layout_marginLeft="3.0dip"      android:scaleType="fitXY" />   <TextView      android:id="@+id/share_item_name"      android:gravity="center"      android:layout_width="wrap_content"      android:layout_height="wrap_content"      android:text="分享"      android:textColor="@color/white"      android:singleLine="true"      android:textSize="@dimen/s_size"      android:layout_marginLeft="3.0dip"      android:layout_marginRight="3.0dip" /> </LinearLayout> 

public List<ResolveInfo> getShareApps(Context context) {      List<ResolveInfo> mApps = new ArrayList<ResolveInfo>();     Intent intent = new Intent(Intent.ACTION_SEND, null);     intent.addCategory(Intent.CATEGORY_DEFAULT);     intent.setType("text/plain"); //   intent.setType("*/*");     PackageManager pManager = context.getPackageManager();     mApps = pManager.queryIntentActivities(intent,          PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);     return mApps;   } 

private List<AppInfo> getShareAppList() {      List<AppInfo> shareAppInfos = new ArrayList<AppInfo>();     PackageManager packageManager = getPackageManager();     List<ResolveInfo> resolveInfos = getShareApps(mContext);     if (null == resolveInfos) {       return null;     } else {       for (ResolveInfo resolveInfo : resolveInfos) {         AppInfo appInfo = new AppInfo();         appInfo.setAppPkgName(resolveInfo.activityInfo.packageName); //       showLog_I(TAG, "pkg>" + resolveInfo.activityInfo.packageName + ";name>" + resolveInfo.activityInfo.name);         appInfo.setAppLauncherClassName(resolveInfo.activityInfo.name);         appInfo.setAppName(resolveInfo.loadLabel(packageManager).toString());         appInfo.setAppIcon(resolveInfo.loadIcon(packageManager));         shareAppInfos.add(appInfo);       }     }         return shareAppInfos;   } 

private void initSharePopupWindow(View parent) {     PopupWindow sharePopupWindow = null;     View view = null;     ListView shareList = null;     if(null == sharePopupWindow) {       //加载布局文件       view = LayoutInflater.from(DetailExchangeActivity.this).inflate(R.layout.popup_share, null);       shareList = (ListView) view.findViewById(R.id.share_list);       List<AppInfo> shareAppInfos = getShareAppList();       final ShareCustomAdapter adapter = new ShareCustomAdapter(mContext, shareAppInfos);       shareList.setAdapter(adapter);              shareList.setOnItemClickListener(new OnItemClickListener() {          @Override         public void onItemClick(AdapterView<?> parent, View view,             int position, long id) {           // TODO Auto-generated method stub           Intent shareIntent = new Intent(Intent.ACTION_SEND);           AppInfo appInfo = (AppInfo) adapter.getItem(position);           shareIntent.setComponent(new ComponentName(appInfo.getAppPkgName(), appInfo.getAppLauncherClassName()));           shareIntent.setType("text/plain"); //         shareIntent.setType("*/*");           //这里就是组织内容了，           shareIntent.putExtra(Intent.EXTRA_TEXT, "test");           shareIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);           DetailExchangeActivity.this.startActivity(shareIntent);         }       });              sharePopupWindow = new PopupWindow(view,            (int)(160 * density), LinearLayout.LayoutParams.WRAP_CONTENT);     }     //使其聚焦     sharePopupWindow.setFocusable(true);     //设置允许在外点击消失     sharePopupWindow.setOutsideTouchable(true);     // 这个是为了点击“返回Back”也能使其消失，并且并不会影响你的背景     sharePopupWindow.setBackgroundDrawable(new BitmapDrawable());     //xoff,yoff基于anchor的左下角进行偏移。正数表示下方右边，负数表示（上方左边）     //showAsDropDown(parent, xPos, yPos);     sharePopupWindow.showAsDropDown(parent, -5, 5);   }