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