What is TedPermission?

After the update to Android 6.0 Marshmallow, we have to not only declare permissions in AndroidManifest.xml, but also request them at runtime. Furthermore, the user can turn permissions on/off anytime in application settings.
When you use dangerous permissons(ex. CAMERA, READ_CONTACTS, READ_PHONE_STATE, ...), you must check and request them at runtime.
(https://developer.android.com/guide/topics/permissions/overview?hl=en#normal-dangerous)

You can make your own permission check logic like this, but it's very complex, mainly because functions Google offer are very hard to use: checkSelfPermission(), requestPermissions(), onRequestPermissionsResult(), onActivityResult().

TedPermission makes it easy to check and request android permissions.

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Demo

1. Request permissions.
2. If user denied permissions, a message dialog with a button to go to Settings will appear.

Setup

Gradle

Edit root/app/build.gradle like below.

Normal

dependencies {
    implementation 'gun0912.ted:tedpermission:x.y.z'
}

RxJava1

dependencies {
    implementation 'gun0912.ted:tedpermission-rx1:x.y.z'
}

RxJava2

dependencies {
    implementation 'gun0912.ted:tedpermission-rx2:x.y.z'
}

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How to use

Normal

-Make PermissionListener

We will use PermissionListener for handling permission check result. You will get the result to onPermissionGranted() or onPermissionDenied() depending on approved permissions.

    PermissionListener permissionlistener = new PermissionListener() {
        @Override
        public void onPermissionGranted() {
            Toast.makeText(MainActivity.this, "Permission Granted", Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onPermissionDenied(List<String> deniedPermissions) {
            Toast.makeText(MainActivity.this, "Permission Denied\n" + deniedPermissions.toString(), Toast.LENGTH_SHORT).show();
        }


    };

-Start TedPermission

TedPermission class requires setPermissionListener(), setPermissions(), and check() methods. Call check() to start checking for permissions.

setRationaleMessage() and setDeniedMessage() are optional methods for displaying messages.

    TedPermission.with(this)
    .setPermissionListener(permissionlistener)
    .setDeniedMessage("If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
    .setPermissions(Manifest.permission.READ_CONTACTS, Manifest.permission.ACCESS_FINE_LOCATION)
    .check();

RxJava1

If you use RxJava1, You can use request() method instead check(). When permission check has finished, you will receive TedPermissionResult instance. TedPermissionResult instance has isGranted(), getDeniedPermissions() methods for checking permission check result.

    TedRxPermission.with(this)
        .setDeniedMessage(
            "If you reject permission,you can not use this service\n\nPlease turn on permissions at [Setting] > [Permission]")
        .setPermissions(Manifest.permission.READ_CONTACTS, Manifest.permission.ACCESS_FINE_LOCATION)
        .request()
        .subscribe(tedPermissionResult -> {
          if (tedPermissionResult.isGranted()) {
            Toast.makeText(RxJava1Activity.this, "Permission Granted", Toast.LENGTH_SHORT).show();
          } else {
            Toast.makeText(RxJava1Activity.this,
                "Permission Denied\n" + tedPermissionResult.getDeniedPermissions().toString(), Toast.LENGTH_SHORT)
                .show();
          }
        }, throwable -> {
        });

RxJava2

RxJava2 api is very similiar to RxJava 1. You can use request() method to request for permissions like RxJava1.

    TedRx2Permission.with(this)
        .setRationaleTitle(R.string.rationale_title)
        .setRationaleMessage(R.string.rationale_message) // "we need permission for read contact and find your location"
        .setPermissions(Manifest.permission.READ_CONTACTS, Manifest.permission.ACCESS_FINE_LOCATION)
        .request()
        .subscribe(tedPermissionResult -> {
          if (tedPermissionResult.isGranted()) {
            Toast.makeText(this, "Permission Granted", Toast.LENGTH_SHORT).show();
          } else {
            Toast.makeText(this,
                "Permission Denied\n" + tedPermissionResult.getDeniedPermissions().toString(), Toast.LENGTH_SHORT)
                .show();
          }
        }, throwable -> {
        });

Customize

TedPermission supports the following methods.

• setGotoSettingButton(boolean) (default: true)
• setRationaleTitle(R.string.xxx or String)
• setRationaleMessage(R.string.xxx or String)
• setRationaleConfirmText(R.string.xxx or String) (default: confirm / 확인)
• setDeniedTitle(R.string.xxx or String)
• setDeniedMessage(R.string.xxx or String)
• setDeniedCloseButtonText(R.string.xxx or String) (default: close / 닫기)
• setGotoSettingButtonText(R.string.xxx or String) (default: setting / 설정)

Also you can use the following utility functions.

• isGranted(Context context, String... permissions): Check if all permissions are granted
• isDenied(Context context, String... permissions): Check if all permissions are denied
• getDeniedPermissions(Context context, String... permissions)
• canRequestPermission(Activity activity, String... permissions): If true you can request a system popup, false means user checked Never ask again.
• startSettingActivityForResult(Activity activity)
• startSettingActivityForResult(Activity activity, int requestCode)

Number of Cases

1. Check permissions -> Already have permissions
   : onPermissionGranted() is called.
   

2. Check permissions -> Don't have permissions
   : Request dialog is shown.
   
   

3. Show request dialog -> User granted permissions
   : onPermissionGranted() is called.
   

4. Show request dialog -> User denied one or more permissions
   : Denied dialog is shown.
   
   

5. Show denied dialog -> Close the dialog
   : onPermissionDenied() called
   

6. Show denied dialog -> Setting button clicked
   : startActivityForResult() to application Setting Activity.
   
   

7. Setting Activity -> onActivityResult()
   : Check permissions again
   

8. Check permission -> Permissions are granted
   : onPermissionGranted() is called.
   

9. Check permission -> There are denied permissions
   : onPermissionDenied() is called.
   

License

Copyright 2017 Ted Park

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.