Android手机号码输入框（满11位自动跳到下个输入框）实例代码

红太狼 2022-02-02 08:58 249阅读 0赞

**view包：**

import android.content.Context;
    import android.text.Editable;
    import android.text.Selection;
    import android.text.TextWatcher;
    import android.util.AttributeSet;
    import android.widget.EditText;
    
    public class MoblieEditText extends EditText {
        public MoblieEditText(Context context) {
            super(context);
            this.addTextChangedListener(new MobileWatcher());
        }
    
        public MoblieEditText(Context context, AttributeSet attrs) {
            super(context, attrs);
            this.addTextChangedListener(new MobileWatcher());
        }
    
        public MoblieEditText(Context context, AttributeSet attrs, int defStyleAttr) {
            super(context, attrs, defStyleAttr);
            this.addTextChangedListener(new MobileWatcher());
        }
    
        class MobileWatcher 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;
                }
            }
        }
    }

**布局之一：**

<com.example.newbike.view.MoblieEditText
                android:id="@+id/et_phone"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="0dp"
                android:layout_weight="2.0"
                android:background="@null"
                android:hint="@string/input_your_phone"
                android:maxLength="13"
                android:inputType="phone"
                android:paddingTop="10dp"
                android:paddingBottom="10dp" />

**在activity中初始化：**

etPhone.addTextChangedListener(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) {
                    btnSignUp.setBackgroundResource(R.drawable.shape_sign_up_button_pre);
                }
    
                @Override
                public void afterTextChanged(Editable s) {
                    if (etPhone.getText().toString().trim().equals("")) {
                        btnSignUp.setBackgroundResource(R.drawable.shape_sign_up_button);
                    } else {
                        btnSignUp.setBackgroundResource(R.drawable.shape_sign_up_button_pre);
                    }
                    if (s != null && s.length() == 13) {
                        if (etPhone.isFocused()) {
                            etPhone.clearFocus();
                            etPsw.requestFocus();
                        }
                    }
                }
            });

![关键][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hoZGh6_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hoZGh6_size_16_color_FFFFFF_t_70]: /images/20220202/b37bd45b44f54038ab8e9134b758dde4.png