/**
* 梦辛灵 实现按钮浮动工具
*/
public class FloatBtnUtil {
private static int height = 0;
private Activity mcontext;
private ViewTreeObserver.OnGlobalLayoutListener listener;
private View root;
public FloatBtnUtil(Activity mcontext){
this.mcontext = mcontext;
if (height == 0){
Display defaultDisplay = mcontext.getWindowManager().getDefaultDisplay();
Point point = new Point();
defaultDisplay.getSize(point);
height = point.y;
}
}
public void setFloatView(View root,View floatview){
this.root = root;
listener = new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
Rect r = new Rect();
mcontext.getWindow().getDecorView().getWindowVisibleDisplayFrame(r);
int heightDifference = height - (r.bottom - r.top);
boolean isKeyboardShowing = heightDifference > height / 3;
if(isKeyboardShowing){
floatview.animate().translationY(-heightDifference).setDuration(0).start();
}else{
floatview.animate().translationY(0).start();
}
}
};
root.getViewTreeObserver().addOnGlobalLayoutListener(listener);
}
public void clearFloatView(){
if (listener != null && root != null)
root.getViewTreeObserver().removeOnGlobalLayoutListener(listener);
}
}
