Android 获取未安装的APK图标、版本号、包名等信息方法

 public static Drawable getApkIcon(Context context, String apkPath) {  PackageManager pm = context.getPackageManager();  PackageInfo info = pm.getPackageArchiveInfo(apkPath,    PackageManager.GET_ACTIVITIES);  if (info != null) {   ApplicationInfo appInfo = info.applicationInfo;   appInfo.sourceDir = apkPath;   appInfo.publicSourceDir = apkPath;   try {    return appInfo.loadIcon(pm);   } catch (OutOfMemoryError e) {    Log.e("ApkIconLoader", e.toString());   }  }  return null; }

String label = appInfo.loadLabel(mPackManager).toString(); 

String packageName = appInfo.packageName; 

String version = info.versionName==null?<p style="margin: 10px auto; padding-top: 0px; padding-bottom: 0px;"></p><p style="margin: 10px auto; padding-top: 0px; padding-bottom: 0px;">"0":info.versionName</p>

private boolean isApkInstalled(String packagename)	 {	 PackageManager localPackageManager = getPackageManager();	 try	 {	  PackageInfo localPackageInfo = localPackageManager.getPackageInfo(packagename, PackageManager.GET_UNINSTALLED_PACKAGES);	  return true;	 }	 catch (PackageManager.NameNotFoundException localNameNotFoundException)	 {	  return false;	 }	 	 }

private void installAPK(String apkPath)  {   Intent intent = new Intent();   intent.setAction(Intent.ACTION_VIEW);   intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);   intent.setDataAndType(Uri.parse("file://" + apkPath),     "application/vnd.android.package-archive");   mContext.startActivity(intent);  } 

private void openAPK(String packagename)   {    PackageManager packageManager = mContext.getPackageManager();    Intent intent=new Intent();    intent =packageManager.getLaunchIntentForPackage(packagename);    mContext.startActivity(intent);   }