How do I check if an app is a non-system app in Android?

PackageManager pm = mcontext.getPackageManager(); List<PackageInfo> list = pm.getInstalledPackages(0); for(PackageInfo pi : list) { ApplicationInfo ai = pm.getApplicationInfo(pi.packageName, 0); System.out.println(“>>>>>>packages is<<<<<<<<” + ai.publicSourceDir); if ((ai.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { System.out.println(“>>>>>>packages is system package”+pi.packageName); } }

How can I find if a particular package exists on my Android device?

Call any of the below method with the package name. import android.content.pm.PackageManager; // … public boolean isPackageExisted(String targetPackage){ List<ApplicationInfo> packages; PackageManager pm; pm = getPackageManager(); packages = pm.getInstalledApplications(0); for (ApplicationInfo packageInfo : packages) { if(packageInfo.packageName.equals(targetPackage)) return true; } return false; } import android.content.pm.PackageManager; public boolean isPackageExisted(String targetPackage){ PackageManager pm=getPackageManager(); try { PackageInfo info=pm.getPackageInfo(targetPackage,PackageManager.GET_META_DATA); } catch … Read more

What is use of android:supportsRtl=”true” in AndroidManifest xml file

Declares whether your application is willing to support right-to-left (RTL) layouts. If set to true and targetSdkVersion is set to 17 or higher, various RTL APIs will be activated and used by the system so your app can display RTL layouts. If set to false or if targetSdkVersion is set to 16 or lower, the … Read more

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