Create Intent by chooser and check safe before start a Activity

　　　　
　　　　 // Build the intent
        //Uri number = Uri.parse("tel:5551234");
        //Intent callIntent = new Intent(Intent.ACTION_DIAL, number);
        Intent intent = new Intent(Intent.ACTION_SEND);
        // Always use string resources for UI text. This says something like "Share this photo with"
        EditText edittext=(EditText)findViewById(R.id.edit_message);
        String title =edittext.getText().toString();
        // Create and start the chooser
        Intent chooser = Intent.createChooser(intent, title);
        startActivity(chooser);
        
        // Verify it resolves
        PackageManager packageManager = getPackageManager();
        List<ResolveInfo> activities = packageManager.queryIntentActivities(chooser, 0);
        boolean isIntentSafe = activities.size() > 0;
          
        // Start an activity if it's safe
        if (isIntentSafe) {
            startActivity(chooser);
        }