Android 6.0动态权限管理

首先引入依赖

compile 'pub.devrel:easypermissions:0.3.0'

其次实现EasyPermissions.PermissionCallbacks接口

implements EasyPermissions.PermissionCallbacks

定义所需权限的数组

   //权限标识
 private static final int REQUEST_CODE_SAVE_IMG = 10;
//所需要的全部权限
 String[] mPermissionList = new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE};

实现接口中的方法

    //授权结果
    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        // Forward results to EasyPermissions
        //跳转到onPermissionsGranted或者onPermissionsDenied去回调授权结果
        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
    }
    //同意授权
    @Override
    public void onPermissionsGranted(int requestCode, List list) {
    }
    //拒绝授权
    @Override
    public void onPermissionsDenied(int requestCode, List perms) {
        if (EasyPermissions.somePermissionPermanentlyDenied(this, perms)) {
            //打开系统设置，手动授权
            new AppSettingsDialog.Builder(this).build().show();
        }
    }

调用方法：

if (EasyPermissions.hasPermissions(MainActivity.this, mPermissionList)) {
            //已经同意过
        具体的业务方法
        } else {
            //未同意过,或者说是拒绝了，再次申请权限
            EasyPermissions.requestPermissions(
                    MainActivity.this,  //上下文
                    "保存图片需要读取sd卡的权限", //提示文字
                    REQUEST_CODE_SAVE_IMG, //请求码
                    mPermissionList //权限列表
            );
        }