Android EasyPermission 优雅地实现动态权限申请

发表于 2017-09-24 更新于 2026-04-13 分类于 Android 阅读次数：本文字数： 4.2k 阅读时长 ≈ 4 分钟

Google开源的动态权限适配库，用起来比较简洁和清晰，总体还不错，如果喜欢链式调用的就用 RxPermission 或者 AndPermission 都是不错的选择。

##一、权限等级和权限组介绍

权限主要分为 normal 、dangerous、signature 和 signatureOrSystem四个等级，一般情况下，我们只需要了解前两种权限的使用就可以了，后面的是属于系统级签名的权限。

##二、普通权限和危险权限

普通权限只需要在AndroidMenifest.xml文件中申请即可，危险权限需要到代码中进行动态申请一般是成对成组地去申请，所以叫权限组

普通权限对应表：

Name	Permission
ACCESS_LOCATION_EXTRA_COMMANDS	ACCESS_NETWORK_STATE
ACCESS_NOTIFICATION_POLICY	ACCESS_WIFI_STATE
BLUETOOTH	BLUETOOTH_ADMIN
BROADCAST_STICKY	CHANGE_NETWORK_STATE
CHANGE_WIFI_MULTICAST_STATE	CHANGE_WIFI_STATE
DISABLE_KEYGUARD	EXPAND_STATUS_BAR
GET_PACKAGE_SIZE	INSTALL_SHORTCUT
INTERNET	KILL_BACKGROUND_PROCESSES
MODIFY_AUDIO_SETTINGS	NFC
READ_SYNC_SETTINGS	READ_SYNC_STATS
RECEIVE_BOOT_COMPLETED	REORDER_TASKS
REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	REQUEST_INSTALL_PACKAGES
SET_ALARM	SET_TIME_ZONE
SET_WALLPAPER	SET_WALLPAPER_HINTS
TRANSMIT_IR	UNINSTALL_SHORTCUT
USE_FINGERPRINT	VIBRATE
WAKE_LOCK	WRITE_SYNC_SETTINGS

危险权限对应表：

权限组	权限
CALENDAR	READ_CALENDAR WRITE_CALENDAR
CAMERA	CAMERA
CONTACTS	READ_CONTACTS WRITE_CONTACTS GET_ACCOUNTS
LOCATION	ACCESS_FINE_LOCATION ACCESS_COARSE_LOCATION
MICROPHONE	RECORD_AUDIO
PHONE	READ_PHONE_STATE CALL_PHONE READ_CALL_LOG WRITE_CALL_LOG ADD_VOICEMAIL USE_SIP PROCESS_OUTGOING_CALLS
SENSORS	BODY_SENSORS
SMS	SEND_SMS RECEIVE_SMS READ_SMS RECEIVE_WAP_PUSH RECEIVE_MMS
STORAGE	READ_EXTERNAL_STORAGE WRITE_EXTERNAL_STORAGE

下面简单介绍一下EasyPermission的简单使用，更多详细使用请参考：https://github.com/googlesamples/easypermissions

##1.添加依赖库

1	compile 'pub.devrel:easypermissions:1.0.1'

##2.定义需要动态申请的权限集合

/**
    * 需要申请的权限数组
    */
   protected String[] needPermissions = {
           Manifest.permission.WRITE_EXTERNAL_STORAGE,
           Manifest.permission.READ_EXTERNAL_STORAGE,
   };

##3.重写回调方法

@Override
   public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
       super.onRequestPermissionsResult(requestCode, permissions, grantResults);

       // Forward results to EasyPermissions
       EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
   }

##4.授权成功和失败的回调

@AfterPermissionGranted(RC_CAMERA_AND_LOCATION)
private void methodRequiresTwoPermission() {
    String[] perms = {Manifest.permission.CAMERA, Manifest.permission.ACCESS_FINE_LOCATION};
    if (EasyPermissions.hasPermissions(this, perms)) {
        // Already have permission, do the thing
        // ...
    } else {
        // Do not have permissions, request them now
        EasyPermissions.requestPermissions(this, getString(R.string.camera_and_location_rationale),
                RC_CAMERA_AND_LOCATION, perms);
    }
}

##第二种写法：

EasyPermissions.requestPermissions(
       new PermissionRequest.Builder(this, RC_CAMERA_AND_LOCATION, perms)
               .setRationale(R.string.camera_and_location_rationale)
               .setPositiveButtonText(R.string.rationale_ask_ok)
               .setNegativeButtonText(R.string.rationale_ask_cancel)
               .setTheme(R.style.my_fancy_style)
               .build());

重写授权成功和失败的回调

@Override
   public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
       super.onRequestPermissionsResult(requestCode, permissions, grantResults);

       // Forward results to EasyPermissions
       EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
   }

   @Override
   public void onPermissionsGranted(int requestCode, List<String> list) {
       // Some permissions have been granted
       // ...
   }

   @Override
   public void onPermissionsDenied(int requestCode, List<String> list) {
       // Some permissions have been denied
       // ...
   }