Question

I need a suggestion here. Consider that I have two applications Application1 and Application2. Before I launch Application2, I want to know whether Application1 exists or not? Can anyone suggest the best method of achieving this.

Thank you

Answer 1

Here’s how I detect a target package and launch it:

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);

    Intent targetIntent = getTargetPackage();
    if(targetIntent != null)
    {
        startActivity(targetIntent);
    }
    else
    {
        Toast.makeText(this, getResources().getString(R.string.target_package_not_installed_error), Toast.LENGTH_LONG).show();
    }
    finish();
}

private Intent getTargetPackage()
{
    packageManager = getPackageManager();
    Intent targetIntent = packageManager.getLaunchIntentForPackage(TARGET_PACKAGE);
    return targetIntent;
}

Hope this helps.