98 lines
3.8 KiB
Java
98 lines
3.8 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.inputmethod.latin.permissions;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import androidx.annotation.NonNull;
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import androidx.core.app.ActivityCompat;
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/**
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* An activity to help request permissions. It's used when no other activity is available, e.g. in
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* InputMethodService. This activity assumes that all permissions are not granted yet.
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*/
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public final class PermissionsActivity
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extends Activity implements ActivityCompat.OnRequestPermissionsResultCallback {
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/**
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* Key to retrieve requested permissions from the intent.
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*/
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public static final String EXTRA_PERMISSION_REQUESTED_PERMISSIONS = "requested_permissions";
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/**
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* Key to retrieve request code from the intent.
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*/
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public static final String EXTRA_PERMISSION_REQUEST_CODE = "request_code";
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private static final int INVALID_REQUEST_CODE = -1;
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private int mPendingRequestCode = INVALID_REQUEST_CODE;
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/**
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* Starts a PermissionsActivity and checks/requests supplied permissions.
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*/
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public static void run(
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@NonNull Context context, int requestCode, @NonNull String... permissionStrings) {
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Intent intent = new Intent(context.getApplicationContext(), PermissionsActivity.class);
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intent.putExtra(EXTRA_PERMISSION_REQUESTED_PERMISSIONS, permissionStrings);
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intent.putExtra(EXTRA_PERMISSION_REQUEST_CODE, requestCode);
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intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
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context.startActivity(intent);
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}
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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mPendingRequestCode = (savedInstanceState != null)
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? savedInstanceState.getInt(EXTRA_PERMISSION_REQUEST_CODE, INVALID_REQUEST_CODE)
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: INVALID_REQUEST_CODE;
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}
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@Override
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protected void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putInt(EXTRA_PERMISSION_REQUEST_CODE, mPendingRequestCode);
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}
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@Override
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protected void onResume() {
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super.onResume();
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// Only do request when there is no pending request to avoid duplicated requests.
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if (mPendingRequestCode == INVALID_REQUEST_CODE) {
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final Bundle extras = getIntent().getExtras();
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final String[] permissionsToRequest =
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extras.getStringArray(EXTRA_PERMISSION_REQUESTED_PERMISSIONS);
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mPendingRequestCode = extras.getInt(EXTRA_PERMISSION_REQUEST_CODE);
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// Assuming that all supplied permissions are not granted yet, so that we don't need to
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// check them again.
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PermissionsUtil.requestPermissions(this, mPendingRequestCode, permissionsToRequest);
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}
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}
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@Override
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public void onRequestPermissionsResult(
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int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
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mPendingRequestCode = INVALID_REQUEST_CODE;
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PermissionsManager.get(this).onRequestPermissionsResult(
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requestCode, permissions, grantResults);
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finish();
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}
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}
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