Android6.0 런타임 권한

context.checkPermission(permission, Process.myPid(), Process.myUid())

activity.requestPermissions(permissions, requestCode);
fragment.requestPermissions(permissions, requestCode);

 //          ，        （   ） ，  true;
 //           ，  false; 
 activity.shouldShowRequestPermissionRationale(permission);
 fragment.shouldShowRequestPermissionRationale(perm);

public class MainActivity extends AppCompatActivity 
implements EasyPermissions.PermissionCallbacks //  EasyPermissions       
{

    //      
    public static final int CODE_READ_SMS = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void onclick(View view) {
        readSmsCount();
    }

    /**
     *     
     *        （  ：        ）
     */
    @AfterPermissionGranted(CODE_READ_SMS)
    public void readSmsCount() {
        String[] perms = new String[] {
                Manifest.permission.READ_SMS,
                Manifest.permission.READ_EXTERNAL_STORAGE
        };

        //        
        // this：   Activity，Activity      EasyPermissions.PermissionCallbacks
        if (EasyPermissions.hasPermissions(this, perms)) {
            //    ，        
            // AsyncQueryHandler
            int count = -1;
            Cursor cursor = getContentResolver().query(Uri.parse("content://sms"),
                    null, null, null, null);
            if (cursor != null) {
                count =  cursor.getCount();
                cursor.close();
            }
            Toast.makeText(this, "    :" + count, Toast.LENGTH_SHORT).show();

        } else {
            //    ，       
            //   1：   Activity
            //   2：                     
            //   3：        
            //   4：  
            EasyPermissions.requestPermissions(this,
                    "          ...",
                    CODE_READ_SMS, perms);
        }
    }

    //           
    @Override
    public void onPermissionsGranted(int requestCode, List perms) {
        System.out.println("-----------------       ");
    }

    //           
    @Override
    public void onPermissionsDenied(int requestCode, List perms) {
        System.out.println("-----------------       ");
    }

    //                    
    @Override
    public void onRequestPermissionsResult(int requestCode,
                                           @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
        System.out.println("-----------------onRequestPermissionsResult");
    }
}