以下是捕獲後退按鍵事件的方法:1.覆蓋editText視圖以覆蓋onKeyPreIme
package com.test.test;
import android.content.Context;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.widget.EditText;
/**
* Created by sumit.saurabh on 11/10/16.
*/
public class ChatEditText extends EditText
{
/* Must use this constructor in order for the layout files to instantiate the class properly */
public ChatEditText(Context context, AttributeSet attrs)
{
super(context, attrs);
// TODO Auto-generated constructor stub
}
private KeyImeChange keyImeChangeListener;
public void setKeyImeChangeListener(KeyImeChange listener)
{
keyImeChangeListener = listener;
}
public interface KeyImeChange
{
public void onKeyIme(int keyCode, KeyEvent event);
}
@Override
public boolean onKeyPreIme(int keyCode, KeyEvent event)
{
if (keyImeChangeListener != null)
{
keyImeChangeListener.onKeyIme(keyCode, event);
}
return false;
}
}
2.在XML ChatEditText
<com.test.test.ChatEditText
android:id = "@+id/messageEditText"
android:layout_width = "match_parent"
android:layout_height = "wrap_content"
android:layout_gravity = "bottom"
android:layout_marginLeft = "12dp"
android:layout_marginRight = "30dp"
android:background = "@null"
android:hint = "Type your message"
android:inputType = "textMultiLine"
android:singleLine = "false"
android:textColorHint = "#c4c0bd"
android:textSize = "18sp"/>
3.然後從任何地方像這樣附加一個監聽器:
private ChatEditText messageEditText;
messageEditText =
(ChatEditText) findViewById(R.id.messageEditText);
messageEditText.setKeyImeChangeListener(new ChatEditText.KeyImeChange(){
@Override
public void onKeyIme(int keyCode, KeyEvent event)
{
if (KeyEvent.KEYCODE_BACK == event.getKeyCode())
{
// do something
}
}});
告訴我你嘗試過什麼到目前爲止 – confucius 2012-01-14 09:44:21
1.這個 txtSearchBar .setOnEditorActionListener(new EditText.OnEditorActionListener() \t {\t \t public boolean onEditorAction(T extView V,INT actionId,KeyEvent的事件) \t { \t如果(event.getKeyCode()== KEYCODE_BACK) \t { \t \t layoutFocus.requestFocus(); \t \t \t \t} \t return false; \t} \t}); 2.方法2 onBackPressed,layoutFocus.requestFocus(); 3。添加hiddenKeyboard清單中的這項活動,並把 \t @覆蓋 \t公共無效onConfigurationChanged(配置NEWCONFIG) – Catalin 2012-01-14 09:49:54
,因爲我不能回答我的問題,如果我有100個多點的聲譽:) – Catalin 2012-01-14 09:54:31