先上截图，有图有真相：
自定义RelativeLayout
package com.demo.softkeyboard;
import android.content.Context;
import android.util.AttributeSet;
import android.widget.RelativeLayout;
public class KeyboardListenRelativeLayout extends RelativeLayout {
private static final String TAG = KeyboardListenRelativeLayout.class.getSimpleName();
public static final byte KEYBOARD_STATE_SHOW = -3;
public static final byte KEYBOARD_STATE_HIDE = -2;
public static final byte KEYBOARD_STATE_INIT = -1;
private boolean mHasInit = false;
private boolean mHasKeyboard = false;
private int mHeight;
private IOnKeyboardStateChangedListener onKeyboardStateChangedListener;
public KeyboardListenRelativeLayout(Context context) {
super(context);
}
public KeyboardListenRelativeLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public KeyboardListenRelativeLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void setOnKeyboardStateChangedListener(IOnKeyboardStateChangedListener onKeyboardStateChangedListener) {
this.onKeyboardStateChangedListener = onKeyboardStateChangedListener;
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.onLayout(changed, l, t, r, b);
if(!mHasInit) {
mHasInit = true;
mHeight = b;
if(onKeyboardStateChangedListener != null) {
onKeyboardStateChangedListener.onKeyboardStateChanged(KEYBOARD_STATE_INIT);
}
} else {
mHeight = mHeight < b ? b : mHeight;
}
if(mHasInit && mHeight > b) {
mHasKeyboard = true;
if(onKeyboardStateChangedListener != null) {
onKeyboardStateChangedListener.onKeyboardStateChanged(KEYBOARD_STATE_SHOW);
}
}
if(mHasInit && mHasKeyboard && mHeight == b) {
mHasKeyboard = false;
if(onKeyboardStateChangedListener != null) {
onKeyboardStateChangedListener.onKeyboardStateChanged(KEYBOARD_STATE_HIDE);
}
}
}
public interface IOnKeyboardStateChangedListener {
public void onKeyboardStateChanged(int state);
}
}
用法：
package com.demo.softkeyboard;
import com.demo.softkeyboard.KeyboardListenRelativeLayout.IOnKeyboardStateChangedListener;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
/**
* 软键盘监听Demo
* @author qiaoning
*
*/
public class SoftKeyboardListenDemoActivity extends Activity {
private EditText editText;
KeyboardListenRelativeLayout relativeLayout;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
relativeLayout = (KeyboardListenRelativeLayout) findViewById(R.id.keyboardRelativeLayout);
editText = (EditText) findViewById(R.id.editText);
relativeLayout.setOnKeyboardStateChangedListener(new IOnKeyboardStateChangedListener() {
public void onKeyboardStateChanged(int state) {
switch (state) {
case KeyboardListenRelativeLayout.KEYBOARD_STATE_HIDE://软键盘隐藏
editText.setVisibility(View.VISIBLE);
break;
case KeyboardListenRelativeLayout.KEYBOARD_STATE_SHOW://软键盘显示
editText.setVisibility(View.GONE);
break;
default:
break;
}
}
});
}
}
使用到的布局文件：使用到的布局文件：
android:id=”@+id/keyboardRelativeLayout”
android:layout_width=”fill_parent”
android:layout_height=”fill_parent”>
android:layout_height=”fill_parent”
android:layout_alignParentLeft=”true”
android:layout_alignParentTop=”true”
android:fillViewport=”true”>
android:layout_height=”wrap_content”
android:orientation=”vertical”>
android:layout_width=”fill_parent”
android:layout_height=”wrap_content”/>
源码下载：http://files.it165.net/pro/201206/0629SoftKeyboardListenDemo.tar.gz