我有一个运行良好的软键盘监听器(一项活动除外)。这里是。
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()。但是一项活动 onGlobalLayout() 会立即被调用(无需更改屏幕)。此活动相当独特,因为它暗示了以下内容
public class PlacesActivity extends AppCompatActivity implements
GoogleApiClient.OnConnectionFailedListener,
GoogleApiClient.ConnectionCallbacks {
//lotsa code
}
PlacesActivity
具有AutoCompleteTextView
用户在 Google Places API 的帮助下选择全球城市的位置。这些回调是否与我的onGlobalLayoutListener
?
onGLobalLayout()
在没有明显布局更改的情况下可以调用任何其他情况?
是否AutoCompleteTextView
触发onGlobalLayout()
?