DownEditTextView【自定义Edittext对Android 软键盘向下的监听】

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前言

记录自定义EditText控件实现监听软键盘隐藏事件的功能。基本上和参考资料相同。

效果图

  

代码分析

自定义EditText子类，然后重写onKeyPreIme方法

    @Override
    public boolean onKeyPreIme(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == 1) {
            Log.i("DownEditTextView", "键盘向下 ");
            super.onKeyPreIme(keyCode, event);
            if(onKeyBoardHideListener != null){
                onKeyBoardHideListener.onKeyHide(keyCode, event);//回调
            }
            return false;
        }
        return super.onKeyPreIme(keyCode, event);
    }

使用步骤

一、项目组织结构图

注意事项：

1、  导入类文件后需要change包名以及重新import R文件路径

2、  Values目录下的文件（strings.xml、dimens.xml、colors.xml等），如果项目中存在，则复制里面的内容，不要整个覆盖

二、导入步骤

将DownEditTextView复制到项目中

package com.why.project.androidcnblogsdemo.views.customedittext;

import android.annotation.SuppressLint;
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.widget.EditText;

/**
 * Created by HaiyuKing
 * Used 对Android 软键盘向下的监听:https://blog.csdn.net/yxhuang2008/article/details/53822072
 * Android软键盘弹出和收回监听：https://blog.csdn.net/wangkai1101/article/details/79066046
 */

@SuppressLint("AppCompatCustomView")
public class DownEditTextView extends EditText {
    public DownEditTextView(Context context) {
        super(context);
    }

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

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

    @Override
    public boolean onKeyPreIme(int keyCode, KeyEvent event) {
        if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == 1) {
            Log.i("DownEditTextView", "键盘向下 ");
            super.onKeyPreIme(keyCode, event);
            if(onKeyBoardHideListener != null){
                onKeyBoardHideListener.onKeyHide(keyCode, event);//回调
            }
            return false;
        }
        return super.onKeyPreIme(keyCode, event);
    }

    /**
     *键盘监听接口
     */
    public OnKeyBoardHideListener onKeyBoardHideListener;
    public void setOnKeyBoardHideListener(OnKeyBoardHideListener onKeyBoardHideListener) {
        this.onKeyBoardHideListener = onKeyBoardHideListener;
    }

    public interface OnKeyBoardHideListener{
        void onKeyHide(int keyCode, KeyEvent event);
    }
}

输入框背景图片资源input_box_send.9.png

三、使用方法

在布局文件中引用这个自定义控件【注意，实际项目中需要更改DownEditTextView的完整路径】

<?xml version="1.0" encoding="utf-8"?>
<!-- 自定义EditText的演示（监听软键盘隐藏） -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.why.project.androidcnblogsdemo.views.customedittext.DownEditTextView
        android:id="@+id/edt_down"
        android:layout_width="match_parent"
        android:layout_height="48dp"
        android:inputType="text"
        android:hint="演示监听软键盘隐藏功能"
        android:lines="1"
        android:background="@drawable/input_box_send"
        android:layout_margin="8dp"
        />

</LinearLayout>

Activity中使用

package com.why.project.androidcnblogsdemo.activity;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
import android.widget.Toast;

import com.why.project.androidcnblogsdemo.R;
import com.why.project.androidcnblogsdemo.views.customedittext.DownEditTextView;

/**
 * Created by HaiyuKing
 * Used 自定义EditText的演示（监听软键盘隐藏）
 */

public class DownEditTextActivity extends AppCompatActivity {
    private DownEditTextView mDownEditTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_downedittext);

        initViews();
        initEvents();
    }

    private void initViews() {
        mDownEditTextView = (DownEditTextView) findViewById(R.id.edt_down);
    }

    private void initEvents() {
        mDownEditTextView.setOnKeyBoardHideListener(new DownEditTextView.OnKeyBoardHideListener() {
            @Override
            public void onKeyHide(int keyCode, KeyEvent event) {
                Toast.makeText(DownEditTextActivity.this,"软键盘隐藏了",Toast.LENGTH_SHORT).show();
            }
        });
    }
}

混淆配置

无

参考资料

对Android 软键盘向下的监听

Android软键盘弹出和收回监听

项目demo下载地址

上面已提供相关代码。