58 lines
2.0 KiB
Java
58 lines
2.0 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.widget;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.widget.ProgressBar;
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import com.android.settings.R;
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/**
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* A (determinate) progress bar in the form of a ring. The progress bar goes clockwise starting
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* from the 12 o'clock position. This view maintain equal width and height using a strategy similar
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* to "centerInside" for ImageView.
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*/
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public class RingProgressBar extends ProgressBar {
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public RingProgressBar(Context context) {
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this(context, null);
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}
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public RingProgressBar(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public RingProgressBar(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, R.style.RingProgressBarStyle);
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}
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public RingProgressBar(Context context, AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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}
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@Override
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protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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final int measuredHeight = getMeasuredHeight();
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final int measuredWidth = getMeasuredWidth();
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final int shortSide = Math.min(measuredHeight, measuredWidth);
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setMeasuredDimension(shortSide, shortSide);
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}
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}
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