CODEWITHSUNDEEP
javaandroid
user9960993
user9960993

Reputation:

Verify if an intent take a valid activity

public void action(View view){
    Intent intent = new Intent(Settings.ACTION_DEVICE_INFO_SETTINGS);
    if(intent!=null) //here is my problem, it return true always
     {startActivity(intent);}
     else{k++;
         Context context = getApplicationContext();
         CharSequence mesajText = "Failed To Open! " + k;
         int duration = 3;
         Toast screen_message = Toast.makeText(context,mesajText,duration);
         screen_message.show();
         }
}

How can I verify if my 'intent' have a valid activity(works when it's open) or an invalid one(app crash when it's open)?

Upvotes: 0

Views: 112

Answers (1)

Sagar
Sagar

Reputation: 24947

if(intent!=null) will always evaluate to true because your are initializing intent just before the if condition. If you want to check if Intent can be handled then use resolveActivity as follows:

Intent intent = new Intent(Settings.ACTION_DEVICE_INFO_SETTINGS);
PackageManager packageManager = getPackageManager();
if (intent.resolveActivity(packageManager) != null) {
    startActivity(intent);
} else{
   k++;
   CharSequence mesajText = "Failed To Open! " + k;
   int duration = 3;
   Toast screen_message = Toast.makeText(this,mesajText,duration);
   screen_message.show();
}

Upvotes: 1

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