Easypermissions使用

Android M对权限系统进行了改变。Android M之前所需权限只需要在AndroidManifest中申请即可。但更新Android M系统后，部分“Dangerous Permission”需要在运行时询问申请。

使用方法：

首先：引用库

//6.0以上的权限申请compile 'pub.devrel:easypermissions:0.3.0'

 注：easypermissions处理权限分为3步

/** * 请求CAMERA权限码 */public static final int REQUEST_CAMERA_PERM = 101;

第一步：

//1.检查权限

if (EasyPermissions.hasPermissions(getActivity(), Manifest.permission.CAMERA)) {    Intent intentscan = new Intent(getActivity(), SecondActivity.class);    startActivityForResult(intentscan, REQUEST_CODE);} else {
//2.申请权限    EasyPermissions.requestPermissions(this, "需要请求相机权限", REQUEST_CAMERA_PERM, Manifest.permission.CAMERA);}
//3.实现EasyPermissions.PermissionCallbacks接口，直接处理权限是否成功申请

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