Andorid marshmallow custom permission code

As we all know android has put some restrictions for permission check for security reasons from android M (6.0) Marshmallow.

Here we gonna share a simple code snippets to customize permission check and put it where you find suitable in your code.

 

Android developer training guide link:  Marshmallow permission

1) Declare permission 

 

public static final String PHONE_PERMISSION = "android.permission.READ_PHONE_STATE";

public static final String CAMERA_PERMISSION = "android.permission.CAMERA";

 

2) xml layout for custom alert dialog (custom_permission_alert.xml)

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/mainmenu"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@null"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/background_color"
        android:clickable="true"
        android:orientation="vertical">

        <TextView
            android:id="@+id/title_tv"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center|left"
            android:text="@string/message"
            android:padding="10dp"
            android:textColor="@color/white_color"
            android:textSize="@dimen/header_text_size" />


        <TextView
            android:id="@+id/message_tv"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="10dp"
            android:gravity="center|left"
            android:textColor="@color/white_color"
            android:textSize="@dimen/content_text_size" />

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/action_no_tv"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_toLeftOf="@+id/action_yes_tv"
                android:layout_centerVertical="true"
                android:layout_marginRight="10dp"
                android:text="@string/no"
                android:padding="10dp"
                android:visibility="gone"
                android:textColor="@color/white_color"
                android:textSize="@dimen/content_text_size" />

            <TextView
                android:id="@+id/action_yes_tv"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_centerVertical="true"
                android:layout_marginRight="5dp"
                android:text="@string/ok"
                android:padding="10dp"
                android:textColor="@color/white_color"
                android:textSize="@dimen/content_text_size" />


        </RelativeLayout>
    </LinearLayout>

</LinearLayout>

 

3) Now create an alert dialog using above xml layout

 

/**
     * This method shows alert dialog to prompt user to enable phone permissions.
     *
     * @param title   the title
     * @param message the message
     */
    public static void showPermissionAlertDialog(final String title, String message,
                                                 final Activity context) {
        try {
            final Dialog dialog = new Dialog(context);
            dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);

            dialog.setContentView(R.layout.app_custom_dialog);
   
            dialog.setCancelable(false);

            dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
            // set the custom dialog components - text, image and button

            TextView titleTv = (TextView) dialog.findViewById(R.id.title_tv);
            titleTv.setText(title);

            TextView actionYesTv = (TextView) dialog.findViewById(R.id.action_yes_tv);
            actionYesTv.setText(context.getResources().getString(R.string.allow));

            TextView actionNoTv = (TextView) dialog.findViewById(R.id.action_no_tv);
            actionNoTv.setText(context.getResources().getString(R.string.deny));
            actionNoTv.setVisibility(View.VISIBLE);

            TextView messageTv = (TextView) dialog.findViewById(R.id.message_tv);
            messageTv.setText(message);

            actionYesTv.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {

                    // Open app settings screen to allow required permissions.
                    Intent intent = new Intent();
                    intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                    Uri uri = Uri.fromParts("package", context.getPackageName(), null);
                    intent.setData(uri);
                    context.startActivity(intent);
                    dialog.dismiss();
                }
            });

            actionNoTv.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    dialog.dismiss();
                }
            });

            if (dialog != null && !dialog.isShowing()) {
                dialog.show();
            }
        } catch (NullPointerException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

4) Steps to call the above functions in real scenario 

 

/** 

* Check if device sdk version is greater than or equal to android M

*/

if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    if (!Util.checkDevicePermissionRuntime(this, 

Util.CAMERA_PERMISSION)) {
                        Util.showPermissionAlertDialog(getResources().getString(R.string.alert),
                                getResources().getString(R.string.allow_app_to_access_device_feature), this);

       }                   

}

 

Here we done with custom permission check implementation for Marshmallow and above versions.

 

Thanks!