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  • Check for target activity available or not

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    We know that implicit intents are used to perform an action that your application can't but others can do.

    Like to send some sms we uses this intent :

    Intent intent = new Intent();
    intent.setAction(Intent.ACTION_SEND);
    intent.putExtra(Intent.EXTRA_TEXT, textMessage);
    intent.setType(HTTP.PLAIN_TEXT_TYPE);
    startActivity(sendIntent);
    

    But do you know this can crash your app if your device doesn't have target activity to send sms.

    To solve this we use resolveActivity method like this :

      if (intent.resolveActivity(getPackageManager()) != null) {
        startActivity(intent);
     } else{
       //Activity not found
     }
    

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