1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settingslib.users; 18 19 import android.app.KeyguardManager; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.content.pm.PackageManager; 23 import android.provider.MediaStore; 24 25 /** 26 * Utility class that contains helper methods to determine if the current user has permission and 27 * the device is in a proper state to start an activity for a given action. 28 */ 29 public class PhotoCapabilityUtils { 30 31 /** 32 * Check if the current user can perform any activity for 33 * android.media.action.IMAGE_CAPTURE action. 34 */ canTakePhoto(Context context)35 public static boolean canTakePhoto(Context context) { 36 return context.getPackageManager().queryIntentActivities( 37 new Intent(MediaStore.ACTION_IMAGE_CAPTURE), 38 PackageManager.MATCH_DEFAULT_ONLY).size() > 0; 39 } 40 41 /** 42 * Check if the current user can perform any activity for 43 * android.intent.action.GET_CONTENT action for images. 44 * Returns false if the device is currently locked and 45 * requires a PIN, pattern or password to unlock. 46 */ canChoosePhoto(Context context)47 public static boolean canChoosePhoto(Context context) { 48 Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 49 intent.setType("image/*"); 50 boolean canPerformActivityForGetImage = 51 context.getPackageManager().queryIntentActivities(intent, 0).size() > 0; 52 // on locked device we can't access the images 53 return canPerformActivityForGetImage && !isDeviceLocked(context); 54 } 55 56 /** 57 * Check if the current user can perform any activity for 58 * com.android.camera.action.CROP action for images. 59 * Returns false if the device is currently locked and 60 * requires a PIN, pattern or password to unlock. 61 */ canCropPhoto(Context context)62 public static boolean canCropPhoto(Context context) { 63 Intent intent = new Intent("com.android.camera.action.CROP"); 64 intent.setType("image/*"); 65 boolean canPerformActivityForCropping = 66 context.getPackageManager().queryIntentActivities(intent, 0).size() > 0; 67 // on locked device we can't start a cropping activity 68 return canPerformActivityForCropping && !isDeviceLocked(context); 69 } 70 isDeviceLocked(Context context)71 private static boolean isDeviceLocked(Context context) { 72 KeyguardManager keyguardManager = context.getSystemService(KeyguardManager.class); 73 return keyguardManager == null || keyguardManager.isDeviceLocked(); 74 } 75 76 } 77