google官方权限申请库EasyPermissions使用方法

1. 去github上引入最新的库 地址

2. 重写onRequestPermissionsResult，将请求结果转发到EasyPermisson库

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

3. 定义唯一的RequestCode

    private static final int RC_LOCATION_GPS_PREM =124;
   

4. 定义要请求的权限字符串(组)

   private static final String[] LOCATION_AND_GPS ={Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.ACCESS_COARSE_LOCATION};
   

5. 请求权限

   if (EasyPermissions.hasPermissions(this,LOCATION_AND_GPS)){              
                   // 应用已经拥有了权限     
               }else {
       			// 应用没有拥有权限
                   EasyPermissions.requestPermissions(
                           this,
                           getResources().getString(R.string.request_loacation),//使用官方提供的弹窗(`AppSettingsDialog`)的时候会用到这个字符串,作为用户拒绝之后弹窗的内容
                           RC_LOCATION_GPS_PREM,
                           LOCATION_AND_GPS
                   );
   

6. 实现回调接口EasyPermissions.PermissionCallbacks，定义在用户同意或者拒绝权限申请之后的行为

   //回调方法
    @Override
    public void onPermissionsGranted(int requestCode, @NonNull List<String> perms) {
    }
    @Override
    public void onPermissionsDenied(int requestCode, @NonNull List<String> perms) {
    }