Android开发---手机号码输入框（满11位自动跳到下个输入框）

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package com.jixiong.teen.view;import android.content.Context;import android.text.Editable;import android.text.Selection;import android.text.TextWatcher;import android.util.AttributeSet;import android.widget.EditText;/** * Created by christy on 16/12/22. */public class MoblieEditText extends EditText {    public MoblieEditText(Context context) {        super(context);        this.addTextChangedListener(new MoblieWatcher());    }    public MoblieEditText(Context context, AttributeSet attrs) {        super(context, attrs);        this.addTextChangedListener(new MoblieWatcher());    }    public MoblieEditText(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        this.addTextChangedListener(new MoblieWatcher());    }    class MoblieWatcher implements TextWatcher {        int beforeTextLength = 0;        int onTextLength = 0;        boolean isChanged = false;        int location = 0;// 记录光标的位置        private char[] tempChar;        private final StringBuffer buffer = new StringBuffer();        int konggeNumberB = 0;        @Override        public void beforeTextChanged(CharSequence s, int start, int count,                                      int after) {            beforeTextLength = s.length();            if (buffer.length() > 0) {                buffer.delete(0, buffer.length());            }            konggeNumberB = 0;            for (int i = 0; i < s.length(); i++) {                if (s.charAt(i) == ' ') {                    konggeNumberB++;                }            }        }        @Override        public void onTextChanged(CharSequence s, int start, int before, int count) {            onTextLength = s.length();            buffer.append(s.toString());            if (onTextLength == beforeTextLength || onTextLength <= 3 || isChanged) {                isChanged = false;                return;            }            isChanged = true;        }        @Override        public void afterTextChanged(Editable s) {            if (isChanged) {                location = getSelectionEnd();                int index = 0;                while (index < buffer.length()) {                    if (buffer.charAt(index) == ' ') {                        buffer.deleteCharAt(index);                    } else {                        index++;                    }                }                index = 0;                int konggeNumberC = 0;                while (index < buffer.length()) {                    if ((index == 3 || index == 8)) {                        buffer.insert(index, ' ');                        konggeNumberC++;                    }                    index++;                }                if (konggeNumberC > konggeNumberB) {                    location += (konggeNumberC - konggeNumberB);                }                tempChar = new char[buffer.length()];                buffer.getChars(0, buffer.length(), tempChar, 0);                String str = buffer.toString();                if (location > str.length()) {                    location = str.length();                } else if (location < 0) {                    location = 0;                }                setText(str);                Editable etable = getText();                Selection.setSelection(etable, location);                isChanged = false;            }        }    }}
使用；；
直接在布局中引用
<com.jixiong.teen.view.MoblieEditText    android:id="@+id/etUserNums"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="@null"    android:hint="@string/user_name"    android:inputType="number"    android:maxLines="1"    android:paddingLeft="@dimen/margin_twenty"    android:singleLine="true"    android:textColorHint="@color/hint_color"    android:textSize="@dimen/sp_14" />
然后再activity中初始化
etUserNums.addTextChangedListener(new TeenEmptyWatcher() {    @Override    public void onTextChanged(CharSequence s, int start, int before, int count) {    }    @Override    public void afterTextChanged(Editable s) {        if (s != null && s.length() == 13) {            if (etUserNums.isFocused()) {                etUserNums.clearFocus();                etUserPwd.requestFocus();            }        }    }});
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