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只能输入汉字EditText:ChineseEditText

程序员文章站 2022-06-14 22:26:44
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package com.li.newhuangjinbo.custom;

import android.content.Context;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputConnectionWrapper;

/**

  • Created by Administrator on 2017/4/11.
    */

public class ChineseEditText extends android.support.v7.widget.AppCompatEditText {
public ChineseEditText(Context context) {
super(context);
}

public ChineseEditText(Context context, AttributeSet attrs) {
    super(context, attrs);
}

public ChineseEditText(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
}

/**
 * 输入法
 * @param outAttrs
 * @return
 */
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
    return new mInputConnecttion(super.onCreateInputConnection(outAttrs),
            false);
}

public class mInputConnecttion extends InputConnectionWrapper implements
        InputConnection {

    public mInputConnecttion(InputConnection target, boolean mutable) {
        super(target, mutable);
    }

    /**
     * 对输入的内容进行拦截
     *
     * @param text
     * @param newCursorPosition
     * @return
     */
    @Override
    public boolean commitText(CharSequence text, int newCursorPosition) {
        // 只能输入汉字
        if (!text.toString().matches("[\u4e00-\u9fa5]+")) {
            return false;
        }
        return super.commitText(text, newCursorPosition);
    }

    @Override
    public boolean sendKeyEvent(KeyEvent event) {
        return super.sendKeyEvent(event);
    }

    @Override
    public boolean setSelection(int start, int end) {
        return super.setSelection(start, end);
    }
}

}

相关标签: 自定义控件