Android Utililty Methods APK Installation Check

PackageManager pm = ctx.getPackageManager();
boolean installed = false;
try {
    pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
    installed = true;
} catch (PackageManager.NameNotFoundException e) {
    installed = false;
return installed;

PackageInfo packageInfo = null;
try {
    packageInfo = context.getPackageManager().getPackageInfo(
            packageName, PackageManager.GET_ACTIVITIES);
} catch (NameNotFoundException e) {
    packageInfo = null;
    e.printStackTrace();
if (packageInfo == null) {
    return false;
} else {
    Log.e(TAG, packageInfo.toString());
    return true;

Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file),
        "application/vnd.android.package-archive");
context.startActivity(intent);

Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setAction(android.content.Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file),
        "application/vnd.android.package-archive");
context.startActivity(intent);

Intent intent = new Intent(Intent.ACTION_DELETE);
Uri packageURI = Uri.parse("package:" + packageName);
intent.setData(packageURI);
context.startActivity(intent);

StringBuilder problems = new StringBuilder();
boolean problemFound = false;
problems.append("The following set up problems were found:\n\n");
if (activity.getPackageName()
        .startsWith("com.google.example.games")) {
    problemFound = true;
    problems.append(
            "- Package name cannot be com.google.*. You need to change the "
...

AlertDialog.Builder dialog = new AlertDialog.Builder(parent);
dialog.setTitle("Choose Install Method");
dialog.setMessage("Choose 'Pebble Appstore' if you are using 2.0 BETA 9+, else choose 'Local .pbw'.");
dialog.setPositiveButton("Local .pbw",
        new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(parent,
...