Android EditText实现分割输入内容
作者：w一花一世界w
这篇文章主要为大家详细介绍了Android EditText实现分割输入内容的相关资料，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
在项目中可能会有许多需要输入手机号码、银行卡号或者身份证号等内容的输入框。如果直接输入的话将会是一堆号码堆在一起，第一是不太美观，第二也容易出错，用户体验不太好。但是若将输入的号码按特定格式进行分割将会大大提高用户体验！
以下是对常用的号码进行简单封装的自定义输入框控件，方便我们在开发过程中使用：
- 该控件支持xml属性指定，也支持代码指定；
- 该控件支持类型分别为电话号码(000 0000 0000)、银行卡号(0000 0000 0000 0000 000)和身份证号(000000 0000 0000 0000)。
效果图
自定义EditText
/**
* @Description 分割输入框
* @Author 一花一世界
*/
public class ContentWithSpaceEditText extends EditText {
public static final int TYPE_PHONE = 0;
public static final int TYPE_CARD = 1;
public static final int TYPE_IDCARD = 2;
private int maxLength = 100;
private int contentType;
private int start, count, before;
private String digits;
public ContentWithSpaceEditText(Context context) {
this(context, null);
}
public ContentWithSpaceEditText(Context context, AttributeSet attrs) {
super(context, attrs);
parseAttributeSet(context, attrs);
}
public ContentWithSpaceEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
parseAttributeSet(context, attrs);
}
private void parseAttributeSet(Context context, AttributeSet attrs) {
TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.ContentWithSpaceEditText, 0, 0);
contentType = ta.getInt(R.styleable.ContentWithSpaceEditText_type, 0);
ta.recycle();
initType();
setSingleLine();
addTextChangedListener(watcher);
}
private void initType() {
if (contentType == TYPE_PHONE) {
maxLength = 13;
digits = "0123456789 ";
setInputType(InputType.TYPE_CLASS_NUMBER);
} else if (contentType == TYPE_CARD) {
maxLength = 23;
digits = "0123456789 ";
setInputType(InputType.TYPE_CLASS_NUMBER);
} else if (contentType == TYPE_IDCARD) {
maxLength = 21;
digits = "0123456789xX ";
setInputType(InputType.TYPE_CLASS_TEXT);
}
setFilters(new InputFilter[]{new InputFilter.LengthFilter(maxLength)});
}
@Override
public void setInputType(int type) {
super.setInputType(type);
// setKeyListener要在setInputType后面调用，否则无效
if (!TextUtils.isEmpty(digits)) {
setKeyListener(DigitsKeyListener.getInstance(digits));
}
}
private TextWatcher watcher = new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
ContentWithSpaceEditText.this.start = start;
ContentWithSpaceEditText.this.before = before;
ContentWithSpaceEditText.this.count = count;
}
@Override
public void afterTextChanged(Editable s) {
if (s == null) {
return;
}
//判断是否是在中间输入，需要重新计算
boolean isMiddle = (start + count) < (s.length());
//在末尾输入时，是否需要加入空格
boolean isNeedSpace = false;
if (!isMiddle && isSpace(s.length())) {
isNeedSpace = true;
}
if (isMiddle || isNeedSpace || count > 1) {
String newStr = s.toString();
newStr = newStr.replace(" ", "");
StringBuilder sb = new StringBuilder();
int spaceCount = 0;
for (int i = 0; i < newStr.length(); i++) {
sb.append(newStr.substring(i, i + 1));
//如果当前输入的字符下一位为空格(i+1+1+spaceCount)，因为i是从0开始计算的，所以一开始的时候需要先加1
if (isSpace(i + 2 + spaceCount)) {
sb.append(" ");
spaceCount += 1;
}
}
removeTextChangedListener(watcher);
s.replace(0, s.length(), sb);
//如果是在末尾的话,或者加入的字符个数大于零的话（输入或者粘贴）
if (!isMiddle || count > 1) {
setSelection(s.length() <= maxLength ? s.length() : maxLength);
} else if (isMiddle) {
//如果是删除
if (count == 0) {
//如果删除时，光标停留在空格的前面，光标则要往前移一位
if (isSpace(start - before + 1)) {
setSelection((start - before) > 0 ? start - before : 0);
} else {
setSelection((start - before + 1) > s.length() ? s.length() : (start - before + 1));
}
}
//如果是增加
else {
if (isSpace(start - before + count)) {
setSelection((start + count - before + 1) < s.length() ? (start + count - before + 1) : s.length());
} else {
setSelection(start + count - before);
}
}
}
addTextChangedListener(watcher);
}
}
};
private boolean isSpace(int length) {
if (contentType == TYPE_PHONE) {
return isSpacePhone(length);
} else if (contentType == TYPE_CARD) {
return isSpaceCard(length);
} else if (contentType == TYPE_IDCARD) {
return isSpaceIDCard(length);
}
return false;
}
private boolean isSpacePhone(int length) {
return length >= 4 && (length == 4 || (length + 1) % 5 == 0);
}
private boolean isSpaceCard(int length) {
return length % 5 == 0;
}
private boolean isSpaceIDCard(int length) {
return length > 6 && (length == 7 || (length - 2) % 5 == 0);
}
public void setContentType(int contentType) {
this.contentType = contentType;
initType();
}
public String getTextWithoutSpace() {
return super.getText().toString().replace(" ", "");
}
/**
* @Description 内容校验
*/
public boolean isContentCheck() {
String text = getTextWithoutSpace();
if (contentType == TYPE_PHONE) {
if (TextUtils.isEmpty(text)) {
ToastUtil.showText(UIUtils.getString(R.string.phone_number_not_empty));
} else if (text.length() < 11) {
ToastUtil.showText(UIUtils.getString(R.string.phone_number_incorrect_length));
} else {
return true;
}
} else if (contentType == TYPE_CARD) {
if (TextUtils.isEmpty(text)) {
ToastUtil.showText(UIUtils.getString(R.string.bank_card_not_empty));
} else if (text.length() < 16) {
ToastUtil.showText(UIUtils.getString(R.string.bank_card_incorrect_length));
} else {
return true;
}
} else if (contentType == TYPE_IDCARD) {
if (TextUtils.isEmpty(text)) {
ToastUtil.showText(UIUtils.getString(R.string.identity_number_not_empty));
} else if (text.length() < 18) {
ToastUtil.showText(UIUtils.getString(R.string.identity_number_incorrect_length));
} else {
return true;
}
}
return false;
}
}
配置attrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="ContentWithSpaceEditText">
<attr name="type" format="enum">
<enum name="phone" value="0" />
<enum name="card" value="1" />
<enum name="IDCard" value="2" />
</attr>
</declare-styleable>
</resources>
布局文件中使用
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/theme_bg"
android:orientation="vertical">
<com.wiggins.splitinput.widget.TitleView
android:id="@+id/titleView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="@dimen/item_normal"
android:layout_margin="@dimen/margin_normal"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:layout_width="@dimen/btn_width_normal"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:text="@string/phone_number"
android:textColor="@color/blue"
android:textSize="@dimen/font_normal" />
<com.wiggins.splitinput.widget.ContentWithSpaceEditText
android:id="@+id/edt_phone_input"
android:layout_width="match_parent"
android:layout_height="@dimen/item_normal"
android:background="@color/white"
android:gravity="center"
android:hint="@string/please_enter_content"
android:inputType="number"
android:textColor="@color/blue"
android:textColorHint="@color/gray"
android:textCursorDrawable="@null"
android:textSize="@dimen/font_normal"
app:type="phone" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="@dimen/item_normal"
android:layout_margin="@dimen/margin_normal"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:layout_width="@dimen/btn_width_normal"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:text="@string/bank_card_number"
android:textColor="@color/blue"
android:textSize="@dimen/font_normal" />
<com.wiggins.splitinput.widget.ContentWithSpaceEditText
android:id="@+id/edt_bank_card_input"
android:layout_width="match_parent"
android:layout_height="@dimen/item_normal"
android:background="@color/white"
android:gravity="center"
android:hint="@string/please_enter_content"
android:inputType="number"
android:textColor="@color/blue"
android:textColorHint="@color/gray"
android:textCursorDrawable="@null"
android:textSize="@dimen/font_normal"
app:type="card" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="@dimen/item_normal"
android:layout_margin="@dimen/margin_normal"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:layout_width="@dimen/btn_width_normal"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:text="@string/identity_number"
android:textColor="@color/blue"
android:textSize="@dimen/font_normal" />
<com.wiggins.splitinput.widget.ContentWithSpaceEditText
android:id="@+id/edt_identity_input"
android:layout_width="match_parent"
android:layout_height="@dimen/item_normal"
android:background="@color/white"
android:gravity="center"
android:hint="@string/please_enter_content"
android:inputType="number"
android:textColor="@color/blue"
android:textColorHint="@color/gray"
android:textCursorDrawable="@null"
android:textSize="@dimen/font_normal"
app:type="IDCard" />
</LinearLayout>
</LinearLayout>
项目地址：传送门
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