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首先在Manifest中找到该Activity，设置属性：android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
在XML文件中搞一个自定义Layout如：
<cn.example.view.TestSoftKeyboard
android:id="@+id/test_view"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
然后定义这个Layout：
public class TestSoftKeyboard extends LinearLayout{
private Listener mListener;
public void setListener(Listener listener){
this.mListener = listener;
}
public interface Listener {
public void onSoftKeyboardShown(boolean isShowing, int softKeyboardHeight);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int height = MeasureSpec.getSize(heightMeasureSpec);
Rect rect = new Rect();
Activity activity = (Activity)getContext();
activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(rect);
int statusBarHeight = rect.top;
int screenHeight = activity.getWindowManager().getDefaultDisplay().getHeight();
int diff = (screenHeight - statusBarHeight) - height;
if(mListener != null){
mListener.onSoftKeyboardShown(diff>128, diff);
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
最后在Activity中：
public class TestActivity extends Activity implements cn.example.TestSoftKeyboard.Listener{
……
mTestView = (TestView) findViewById(R.id.test_view);
mTestView .setListener(this);
……
@Override
public void onSoftKeyboardShown(boolean isShowing, int softKeyboardHeight) {
if (isShowing) {
mAfterMeasureSize = softKeyboardHeight;
Log.i("Test", "OnSoftKeyboardShown showing softKeyboardHeight :" + softKeyboardHeight);
} else {
mPreMeasureSize = softKeyboardHeight;
Log.i("Test", "OnSoftKeyboardShown dismiss softKeyboardHeight :" + softKeyboardHeight);
}
if(mAfterMeasureSize - mPreMeasureSize > 150){
int h = mAfterMeasureSize - mPreMeasureSize;
}
}
}
上面的h就是软键盘的高度了，如果你的Activity设置了Title，记得用h这个值，否则，在TestSoftKeyboard这个类中得到的diff就是软键盘的高度了。
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原文地址：http://www.cnblogs.com/visuals/p/4977329.html
