AValidationsAndroid 表单验证
AValidations 是 一个免费的、开源的、简易的、遵循Apache Licence 2.0开源协议发布，超级容易扩展的android表单验证的小框架
使用方法：
1.下载zip或者克隆AValidations项目
2.导入Eclipse，右键工程->preference->Android->library->Add,选择AValidations工程加入后 apply应用
3.继承ValidationExecutor写出自己的校验器：
public class UserNameValidation extends ValidationExecutor {
public boolean doValidate(Context context, String text) {
String regex = "^[a-zA-Z](?=.*?[a-zA-Z])(?=.*?[0-9])[a-zA-Z0-9_]{7,11}$";
boolean result = Pattern.compile(regex).matcher(text).find();
if (!result) {
Toast.makeText(context, context.getString(R.string.e_username_hint), Toast.LENGTH_SHORT).show();
return false;
}
return true;
}
}
4.使用EditTextValidator进行校验：
public class LoginActivity extends Activity implements OnClickListener{
private EditText usernameEditText;
private EditText passwordEditText;
private Button loginButton;
private EditTextValidator editTextValidator;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
usernameEditText = (EditText) findViewById(R.id.login_username_edittext);
passwordEditText = (EditText) findViewById(R.id.login_password_edittext);
loginButton = (Button) findViewById(R.id.login_button);
loginButton.setOnClickListener(this);
editTextValidator = new EditTextValidator(this)
.setButton(loginButton)
.add(new ValidationModel(usernameEditText,new UserNameValidation()))
.add(new ValidationModel(passwordEditText,new PasswordValidation()))
.execute();
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.login_button:
if (editTextValidator.validate()) {
Toast.makeText(this, "通过校验", Toast.LENGTH_SHORT).show();
}
break;
}
}
5.如果需要实现没有填写表单时表单提交按钮不可点击效果 需要设置setButton(view)和写Button背景的selector，如：
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/red_btn_normal" android:state_focused="true" android:state_pressed="false"/> <item android:drawable="@drawable/red_btn_selected" android:state_focused="true" android:state_pressed="true"/> <item android:drawable="@drawable/red_btn_selected" android:state_focused="false" android:state_pressed="true"/> <item android:drawable="@drawable/red_btn_disable" android:state_enabled="false"/> <item android:drawable="@drawable/red_btn_normal"/> </selector>
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