ask permission only >= 23

Author: npes87184

app/app.iml

@@ -88,6 +88,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/apk_list" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/blame" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/build-info" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/builds" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/check-libraries" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/check-manifest" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/checkDebugClasspath" />

app/src/main/java/com/npes87184/s2tdroid/donate/MainActivity.java

@@ -5,6 +5,7 @@
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.graphics.Color;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.v4.app.ActivityCompat;
@@ -52,7 +53,7 @@ protected void onCreate(Bundle savedInstanceState) {
         if (!addPermission(permissionsList, Manifest.permission.WRITE_EXTERNAL_STORAGE))
             permissionsNeeded.add("WRITE_EXTERNAL_STORAGE");
 
-        if (permissionsList.size() > 0) {
+        if (Build.VERSION.SDK_INT >= 23 && permissionsList.size() > 0) {
             // Need Rationale
             new SweetAlertDialog(this)
                     .setTitleText(getString(R.string.app_name))