/**      * 通过蓝牙发送文件      */     private void sendFile(Activity activity) {         PackageManager localPackageManager = activity.getPackageManager();         Intent localIntent = null;         HashMap<String, ActivityInfo> localHashMap = null;         try {             localIntent = new Intent();             localIntent.setAction(Intent.ACTION_SEND);             File file = new File(TAExternalOverFroyoUtils.getDiskCacheDir(this,                     Constants.DOWNLOAD_DIR).getAbsolutePath(),                     TextUtils.genApkName(worm.getWormid()));             localIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));             // localIntent.putExtra(Intent.EXTRA_STREAM,             // Uri.fromFile(new File(localApplicationInfo.sourceDir)));             localIntent.setType("*/*");             List<ResolveInfo> localList = localPackageManager.queryIntentActivities(                     localIntent, 0);             localHashMap = new HashMap<String, ActivityInfo>();             Iterator<ResolveInfo> localIterator1 = localList.iterator();             while (localIterator1.hasNext()) {                 ResolveInfo resolveInfo = (ResolveInfo) localIterator1.next();                 ActivityInfo localActivityInfo2 = resolveInfo.activityInfo;                 String str = localActivityInfo2.applicationInfo.processName;                 if (str.contains("bluetooth"))                     localHashMap.put(str, localActivityInfo2);             }         } catch (Exception localException) {             ToastHelper.showBlueToothSupportErr(activity);         }         if (localHashMap.size() == 0)             ToastHelper.showBlueToothSupportErr(activity);         ActivityInfo localActivityInfo1 = (ActivityInfo) localHashMap                 .get("com.android.bluetooth");         if (localActivityInfo1 == null) {             localActivityInfo1 = (ActivityInfo) localHashMap                     .get("com.mediatek.bluetooth");         }         if (localActivityInfo1 == null) {             Iterator<ActivityInfo> localIterator2 = localHashMap.values().iterator();             if (localIterator2.hasNext())                 localActivityInfo1 = (ActivityInfo) localIterator2.next();         }         if (localActivityInfo1 != null) {             localIntent.setComponent(new ComponentName(                     localActivityInfo1.packageName, localActivityInfo1.name));             activity.startActivityForResult(localIntent, 4098);             return;         }         ToastHelper.showBlueToothSupportErr(activity);     }