我有一个运行良好的软键盘侦听器(一项活动除外)。在这里。
public static void setKeyboardListener(final Activity activity, final ImageView iv_header){
final View view =activity.findViewById(android.R.id.content);
view.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout(){
//get cached screen height
String s_heightRoot =StringCacheFactory.stringCache.get("screen_height");
int heightRoot = (s_heightRoot ==null) ? 0 : FormatFactory.tryParseStringToInt(s_heightRoot);
//get height when onGlobalLayout is called
Rect measureNewRect = new Rect();
view.getWindowVisibleDisplayFrame(measureNewRect);
int heightNew =measureNewRect.bottom;
if ((heightNew < heightRoot) || (heightRoot ==0)){
//screen has shrunk, keyboard open, perform awesome code
view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}else{
//full screen, do nothing
view.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
}
});
}
对于所有活动,侦听器等待屏幕更改,然后调用onGlobalLayout()。但是一个活动onGlobalLayout()被立即调用(无需更改屏幕)。此活动的独特之处在于它隐含以下内容
public class PlacesActivity extends AppCompatActivity implements
GoogleApiClient.OnConnectionFailedListener,
GoogleApiClient.ConnectionCallbacks {
//lotsa code
}
PlacesActivity
有一个AutoCompleteTextView
,用户可以在其中借助Google Places API来选择世界各地的城市。这些回调会干扰我的onGlobalLayoutListener
吗?
在没有明显改变布局的情况下可以调用onGLobalLayout()
的其他情况吗?
AutoCompleteTextView
会触发onGlobalLayout()
吗?