Android自定义EditText实现手机号码和银行卡号自动分隔、自动设置分隔格式
1. 在原作者的基础上，删除了多余的功能，以及不依赖任何资源等文件；要用的话直接把自定义的类放进项目中即可，，，也不用 加入jar包。
2.功能点
* 按自己想要的格式自动分割显示的EditText 默认手机格式：xxx xxxx xxxx
* 也可自定义任意格式，如信用卡格式：xxxx-xxxx-xxxx-xxxx 或 xxxx xxxx xxxx xxxx
* 使用pattern时无需在xml中设置maxLength属性，若需要设置时应注意加上分隔符的数
效果图:
自定义的类：
package nie.com.testphoneparrtern;
import android.content.Context;
import android.graphics.Canvas;
import android.text.Editable;
import android.text.InputType;
import android.text.TextWatcher;
import android.util.AttributeSet;
/**
* 按自己想要的格式自动分割显示的EditText 默认手机格式：xxx xxxx xxxx可
* 也可自定义任意格式，如信用卡格式：xxxx-xxxx-xxxx-xxxx 或 xxxx xxxx xxxx xxxx
* 使用pattern时无需在xml中设置maxLength属性，若需要设置时应注意加上分隔符的数量
* com.z.customedittext.XEditText
* ContentSeparatorEditText
*/
public class XEditText extends android.support.v7.widget.AppCompatEditText {
private static final String SPACE = " ";
private static final int[] DEFAULT_PATTERN = new int[] { 3, 4, 4 };
private OnTextChangeListener mTextChangeListener;
private TextWatcher mTextWatcher;
private int preLength;
private int currLength;
private int[] pattern; // 模板
private int[] intervals; // 根据模板控制分隔符的插入位置
private String separator; // 分割符，默认使用空格分割
// 根据模板自动计算最大输入长度，超出输入无效。使用pattern时无需在xml中设置maxLength属性，若需要设置时应注意加上分隔符的数量
private int maxLength;
private boolean hasNoSeparator; // 设置为true时功能同EditText
public XEditText(Context context) {
this(context, null);
}
public XEditText(Context context, AttributeSet attrs) {
this(context, attrs, android.R.attr.editTextStyle); // Attention !
}
public XEditText(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
if (separator == null)
separator = SPACE;
init();
}
private void init() {
// 如果设置 inputType="number" 的话是没法插入空格的，所以强行转为inputType="phone"
if (getInputType() == InputType.TYPE_CLASS_NUMBER)
setInputType(InputType.TYPE_CLASS_PHONE);
setPattern(DEFAULT_PATTERN);
mTextWatcher = new MyTextWatcher();
this.addTextChangedListener(mTextWatcher);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
}
/**
* 自定义分隔符
*/
public void setSeparator(String separator) {
if (separator == null) {
throw new IllegalArgumentException("separator can't be null !");
}
this.separator = separator;
}
/**
* 自定义分割模板
* @param pattern 每一段的字符个数的数组
*/
public void setPattern(int[] pattern) {
if (pattern == null) {
throw new IllegalArgumentException("pattern can't be null !");
}
this.pattern = pattern;
intervals = new int[pattern.length];
int count = 0;
int sum = 0;
for (int i = 0; i < pattern.length; i++) {
sum += pattern[i];
intervals[i] = sum + count;
if (i < pattern.length - 1)
count++;
}
maxLength = intervals[intervals.length - 1];
}
/**
* 输入待转换格式的字符串
*/
public void setTextToSeparate(CharSequence c) {
if (c == null || c.length() == 0)
return;
setText("");
for (int i = 0; i < c.length(); i++) {
append(c.subSequence(i, i + 1));
}
}
/**
* 获得除去分割符的输入框内容
*/
public String getNonSeparatorText() {
return getText().toString().replaceAll(separator, "");
}
/**
* @return 是否有分割符
*/
public boolean hasNoSeparator() {
return hasNoSeparator;
}
/**
* @param hasNoSeparator true设置无分隔符模式，功能同EditText
*/
public void setHasNoSeparator(boolean hasNoSeparator) {
this.hasNoSeparator = hasNoSeparator;
if (hasNoSeparator)
separator = "";
}
/**
* 设置OnTextChangeListener，同EditText.addOnTextChangeListener()
*/
public void setOnTextChangeListener(OnTextChangeListener listener) {
this.mTextChangeListener = listener;
}
// =========================== MyTextWatcher===========================
private class MyTextWatcher implements TextWatcher {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
preLength = s.length();
if (mTextChangeListener != null)
mTextChangeListener.beforeTextChanged(s, start, count, after);
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
currLength = s.length();
if (hasNoSeparator)
maxLength = currLength;
if (currLength > maxLength) {
getText().delete(currLength - 1, currLength);
return;
}
for (int i = 0; i < pattern.length; i++) {
if (currLength == intervals[i]) {
if (currLength > preLength) { // 正在输入
if (currLength < maxLength) {
removeTextChangedListener(mTextWatcher);
mTextWatcher = null;
getText().insert(currLength, separator);
}
} else if (preLength <= maxLength) { // 正在删除
removeTextChangedListener(mTextWatcher);
mTextWatcher = null;
getText().delete(currLength - 1, currLength);
}
if (mTextWatcher == null) {
mTextWatcher = new MyTextWatcher();
addTextChangedListener(mTextWatcher);
}
break;
}
}
if (mTextChangeListener != null)
mTextChangeListener.onTextChanged(s, start, before, count);
}
@Override
public void afterTextChanged(Editable s) {
if (mTextChangeListener != null)
mTextChangeListener.afterTextChanged(s);
}
}
public interface OnTextChangeListener {
void beforeTextChanged(CharSequence s, int start, int count, int after);
void onTextChanged(CharSequence s, int start, int before, int count);
void afterTextChanged(Editable s);
}
}
布局文件:
MainActivity.java
package nie.com.testphoneparrtern;
import android.app.Activity;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.Editable;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends Activity {
private XEditText edt;
private Button bt;
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
edt=(XEditText)findViewById(R.id.edt);
bt=(Button)findViewById(R.id.bt);
tv=(TextView)findViewById(R.id.tv);
//设置分隔的条件
//信用卡格式
// edt.setPattern(new int[] { 4, 4, 4, 4, 4 });
//电话号码格式
edt.setPattern(new int[] { 3, 4, 4 });
//设置分隔符
edt.setSeparator("-");
bt.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
edt.setTextToSeparate("13356258951");
}
});
edt.setOnTextChangeListener(new XEditText.OnTextChangeListener() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
tv.setText(edt.getNonSeparatorText());
}
});
}
}