1 package com.android.settings.datausage;
2 
3 import android.content.Context;
4 import android.util.AttributeSet;
5 import android.view.View;
6 import android.widget.LinearLayout;
7 
8 import androidx.annotation.Nullable;
9 
10 public class MeasurableLinearLayout extends LinearLayout {
11     private View mFixedView;
12     private View mDisposableView;
13 
MeasurableLinearLayout(Context context)14     public MeasurableLinearLayout(Context context) {
15         super(context, null);
16     }
17 
MeasurableLinearLayout(Context context, @Nullable AttributeSet attrs)18     public MeasurableLinearLayout(Context context, @Nullable AttributeSet attrs) {
19         super(context, attrs, 0);
20     }
21 
MeasurableLinearLayout(Context context, @Nullable AttributeSet attrs, int defStyleAttr)22     public MeasurableLinearLayout(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
23         super(context, attrs, defStyleAttr, 0);
24     }
25 
MeasurableLinearLayout(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)26     public MeasurableLinearLayout(Context context, AttributeSet attrs,
27         int defStyleAttr, int defStyleRes) {
28         super(context, attrs, defStyleAttr, defStyleRes);
29     }
30 
31     @Override
onMeasure(int widthMeasureSpec, int heightMeasureSpec)32     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
33         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
34         if (mDisposableView != null && getMeasuredWidth() - mFixedView.getMeasuredWidth()
35                 < mDisposableView.getMeasuredWidth()) {
36             mDisposableView.setVisibility(GONE);
37             super.onMeasure(widthMeasureSpec, heightMeasureSpec);
38         } else if (mDisposableView != null && mDisposableView.getVisibility() != VISIBLE) {
39             mDisposableView.setVisibility(VISIBLE);
40             super.onMeasure(widthMeasureSpec, heightMeasureSpec);
41         }
42     }
43 
setChildren(View fixedView, View disposableView)44     public void setChildren(View fixedView, View disposableView) {
45         mFixedView = fixedView;
46         mDisposableView = disposableView;
47     }
48 }