使用saripaar对android输入控件进行快速验证

saripaar是个android的第三方快速校验，使用注解快速添加验证规则。

public class LoginActivity extends Activity  implements 

   {
   @Required(order = 1, message="用户名不能为空")
    private EditText tbxUser=null;
    @Required(order = 2,message="密码不能为空")
    private EditText tbxPsw =null;
    private Validator validator;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }
        //初始化监听
        initListener();
        //实例化校验类库
        validator = new Validator(this); validator.setValidationListener(this);
        }

    /**
     * 初始化监听
     */
    private void initListener() {
        
        Button btn = (Button)this.findViewById(R.id.btnLogin);
        tbxUser=(EditText)this.findViewById(R.id.txtUser);
        tbxPsw=(EditText)this.findViewById(R.id.txtPassword);
        
        btn.setOnClickListener(new OnClickListener(){
            public void onClick(View v){
                validator.validate();
            }


        });
    }
    private void login() {
                 Dialog.showAlert(“Logining”, this );
             };
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public void preValidation() {
        // TODO Auto-generated method stub
        
    }

    @Override
    public void onSuccess() {
        // TODO Auto-generated method stub
        login();
        }
    @Override
    public void onFailure(View failedView, Rule<?> failedRule) {
        // TODO Auto-generated method stub
        String message = failedRule.getFailureMessage();
        if (failedView instanceof EditText) {
         failedView.requestFocus();
         ((EditText) failedView).setError(message);
         } 
         else { Dialog.showToast(message,this);
      }
   }
 @Override
    public void onValidationCancelled() {
        // TODO Auto-generated method stub
        
    }

}