1 /*
2 * Copyright (C) 2023 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 *
17 */
18
19 package com.android.healthconnect.controller.utils
20
21 import android.content.Context
22 import android.graphics.Rect
23 import android.view.TouchDelegate
24 import android.view.View
25 import com.android.healthconnect.controller.R
26 import kotlin.math.max
27
28 /** Increases a view's touch target size and uses the parentView as the touch delegate. */
increaseViewTouchTargetSizenull29 fun increaseViewTouchTargetSize(context: Context, childView: View, parentView: View) {
30 val largerTouchBounds = Rect()
31 childView.getHitRect(largerTouchBounds)
32 val margin =
33 getTouchTargetMargin(
34 context.resources.getDimension(R.dimen.button_size), largerTouchBounds.height())
35 largerTouchBounds.top -= margin
36 largerTouchBounds.left -= margin
37 largerTouchBounds.bottom += margin
38 largerTouchBounds.right += margin
39 parentView.touchDelegate = TouchDelegate(largerTouchBounds, childView)
40 }
41
getTouchTargetMarginnull42 fun getTouchTargetMargin(desiredSize: Float, actualSize: Int): Int {
43 return max(((desiredSize - actualSize) / 2) * 1.0f, 0f).toInt()
44 }
45