Added permissions to Uploads

app/src/main/java/gr/thmmy/mthmmy/activities/upload/UploadActivity.java

@@ -4,10 +4,12 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.support.annotation.NonNull;
 import android.support.design.widget.FloatingActionButton;
 import android.support.v7.content.res.AppCompatResources;
 import android.support.v7.preference.PreferenceManager;
@@ -63,9 +65,14 @@ public class UploadActivity extends BaseActivity {
     /**
      * Request codes used in activities for result (AFR) calls
      */
-    private static final int AFR_REQUEST_CODE_CHOOSE_FILE = 8;
-    private static final int AFR_REQUEST_CODE_CAMERA = 4;
-    private static final int AFR_REQUEST_CODE_FIELDS_BUILDER = 74;
+    private static final int AFR_REQUEST_CODE_CHOOSE_FILE = 8;  //Arbitrary, application specific
+    private static final int AFR_REQUEST_CODE_CAMERA = 4;     //Arbitrary, application specific
+    private static final int AFR_REQUEST_CODE_FIELDS_BUILDER = 74;    //Arbitrary, application specific
+
+    /**
+     * Request code to gain read/write permission
+     */
+    private static final int UPLOAD_REQUEST_CODE = 42;    //Arbitrary, application specific
 
     private ArrayList<UploadCategory> uploadRootCategories = new ArrayList<>();
     private ParseUploadPageTask parseUploadPageTask;
@@ -214,14 +221,10 @@ public class UploadActivity extends BaseActivity {
         Drawable takePhotoDrawable = AppCompatResources.getDrawable(this, R.drawable.ic_photo_camera_white_24dp);
         takePhotoButton.setCompoundDrawablesRelativeWithIntrinsicBounds(takePhotoDrawable, null, null, null);
         takePhotoButton.setOnClickListener(v -> {
-            // Create the File where the photo should go
-            photoFile = TakePhoto.createImageFile(this);
-
-            // Continue only if the File was successfully created
-            if (photoFile != null) {
-                startActivityForResult(TakePhoto.getIntent(this, photoFile),
-                        AFR_REQUEST_CODE_CAMERA);
-            }
+        if(checkPerms())
+            takePhoto();
+        else
+            requestPerms(UPLOAD_REQUEST_CODE);
         });
 
         FloatingActionButton uploadFAB = findViewById(R.id.upload_fab);
@@ -408,6 +411,27 @@ public class UploadActivity extends BaseActivity {
         }
     }
 
+    @Override
+    public void onRequestPermissionsResult(int permsRequestCode, @NonNull String[] permissions
+            , @NonNull int[] grantResults) {
+        switch (permsRequestCode) {
+            case UPLOAD_REQUEST_CODE:
+                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
+                    takePhoto();
+                break;
+        }
+    }
+
+    // Should only be called after making sure permissions are granted
+    private void takePhoto(){
+        // Create the File where the photo should go
+        photoFile = TakePhoto.createImageFile(this);
+
+        // Continue only if the File was successfully created
+        if (photoFile != null)
+            startActivityForResult(TakePhoto.getIntent(this, photoFile), AFR_REQUEST_CODE_CAMERA);
+    }
+
     private class CustomOnItemSelectedListener implements AdapterView.OnItemSelectedListener {
         private ArrayList<UploadCategory> parentCategories, childCategories;
 

app/src/main/java/gr/thmmy/mthmmy/base/BaseActivity.java

@@ -632,10 +632,10 @@ public abstract class BaseActivity extends AppCompatActivity {
 //-------------------------------------------BOOKMARKS END------------------------------------------
 
     //-------PERMS---------
-    private static final int PERMISSIONS_REQUEST_CODE = 69;
+    private static final int DOWNLOAD_REQUEST_CODE = 69;  //Arbitrary, application specific
 
     //True if permissions are OK
-    private boolean checkPerms() {
+    protected boolean checkPerms() {
         if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1) {
             String[] PERMISSIONS_STORAGE = {
                     Manifest.permission.READ_EXTERNAL_STORAGE,
@@ -648,13 +648,13 @@ public abstract class BaseActivity extends AppCompatActivity {
     }
 
     //Display popup for user to grant permission
-    private void requestPerms() { //Runtime permissions request for devices with API >= 23
+    protected void requestPerms(int code) { //Runtime permissions request for devices with API >= 23
         if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1) {
             String[] PERMISSIONS_STORAGE = {
                     Manifest.permission.READ_EXTERNAL_STORAGE,
                     Manifest.permission.WRITE_EXTERNAL_STORAGE};
 
-            requestPermissions(PERMISSIONS_STORAGE, PERMISSIONS_REQUEST_CODE);
+            requestPermissions(PERMISSIONS_STORAGE, code);
         }
     }
 
@@ -663,8 +663,9 @@ public abstract class BaseActivity extends AppCompatActivity {
     public void onRequestPermissionsResult(int permsRequestCode, @NonNull String[] permissions
             , @NonNull int[] grantResults) {
         switch (permsRequestCode) {
-            case PERMISSIONS_REQUEST_CODE:
-                downloadFile();
+            case DOWNLOAD_REQUEST_CODE:
+                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
+                    prepareDownload(tempThmmyFile);
                 break;
         }
     }
@@ -678,16 +679,10 @@ public abstract class BaseActivity extends AppCompatActivity {
             prepareDownload(thmmyFile);
         else {
             tempThmmyFile = thmmyFile;
-            requestPerms();
+            requestPerms(DOWNLOAD_REQUEST_CODE);
         }
     }
 
-    //Uses temp file - called after permission grant
-    private void downloadFile() {
-        if (checkPerms())
-            prepareDownload(tempThmmyFile);
-    }
-
     private void prepareDownload(ThmmyFile thmmyFile) {
         String fileName = thmmyFile.getFilename();
         if (FileUtils.fileNameExists(fileName))
@@ -705,15 +700,8 @@ public abstract class BaseActivity extends AppCompatActivity {
         Button cancelButton = view.findViewById(R.id.cancel);
         Button openButton = view.findViewById(R.id.open);
         Button downloadButton = view.findViewById(R.id.download);
-        cancelButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                dialog.dismiss();
-            }
-        });
-        openButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
+        cancelButton.setOnClickListener(v -> dialog.dismiss());
+        openButton.setOnClickListener(v -> {
             dialog.dismiss();
             try {
                 String fileName = thmmyFile.getFilename();
@@ -727,14 +715,10 @@ public abstract class BaseActivity extends AppCompatActivity {
                 Toast.makeText(getBaseContext(), "Couldn't open file...", Toast.LENGTH_SHORT).show();
             }
 
-            }
         });
-        downloadButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
+        downloadButton.setOnClickListener(v -> {
             dialog.dismiss();
             DownloadHelper.enqueueDownload(thmmyFile);
-            }
         });
         dialog.show();
     }