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Android之表单验证,Validation三方集成。

android中判断控件是否为空的地方非常之多,比如登录注册,只要是需要填写东西的地方基本上都需要判空。

难度不大,但是代码相对冗杂,如果集成框架的话就相对简单多了。

Android之表单验证,Validation三方集成。_邮箱判断

1.添加依赖


compile 'com.mobsandgeeks:android-saripaar:2.0.3'


2.布局


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="10dp">

<EditText
android:id="@+id/et1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入姓名" />

......

<EditText
android:id="@+id/et6"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入姓名" />

<Button
android:text="Button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/button" />

</LinearLayout>


3.获取对象并设置相应判断类型


@BindView(R.id.button)
Button button;

@BindView(R.id.et1)
@NotEmpty(messageResId = R.string.errorMessage)//类型
@Order(1)//第几个
EditText et1;
@BindView(R.id.et2)
@NotEmpty(messageResId = R.string.errorMessage)
@Order(2)
EditText et2;

strings.xml


<resources>
<string name="app_name">ValidationDemo</string>
<string name="errorMessage">不能为空</string>
</resources>


4.onCreate中初始化


validator = new Validator(this);
validator.setValidationListener(this);

两个监听方法


@Override
public void onValidationSucceeded() {//不为空的时候执行
//do somethings
//sendSubmit();
}

@Override
public void onValidationFailed(List<ValidationError> errors) {//为空的时候执行
for (ValidationError error : errors) {
View view = error.getView();
String message = error.getCollatedErrorMessage(this);
if (view instanceof EditText) {
((EditText) view).setError(message);
}
}
}


5.调用


@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.button:
validator.validate();
break;
}
}


6.扩展(非空、邮箱等)

NotEmpty
@NotEmpty(messageId = R.string.validation_name, order = 1)
private EditText mNameEditText;

MaxLength
MinLength

@MinLength(value = 1, messageId = R.string.validation_participants, order = 2)
private EditText mNameEditText;

MaxValue
MinValue

@MinValue(value = 2L, messageId = R.string.validation_name_length)
private EditText mEditNumberOfParticipants;

MaxNumberValue
MinNumberValue

@MinNumberValue(value = "5.5", messageId = R.string.validation_name_length)
private EditText mEditPotentialOfHydrogen;

RegExp

@RegExp(value = EMAIL, messageId = R.string.validation_valid_email)
private EditText mEditEmail;
@RegExp(value = "^[0-9]+$", messageId = R.string.validation_valid_count)
private EditText mEditCount;

DateInFuture

@DateInFuture(messageId = R.string.validation_date)
private TextView mTxtDate;

DateNoWeekend

@DateNoWeekend(messageId = R.string.validation_date_weekend)
private TextView mTxtDate;

Custom

@Custom(value = MyVeryOwnValidator.class, messageId = R.string.validation_custom)
private EditText mNameEditText;


Demo地址:​​https://github.com/yechaoa/ValidationDemo​​


github:​​https://github.com/ragunathjawahar/android-saripaar/​​



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