| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.example.cannylive; |
| |
| import android.content.Context; |
| import android.graphics.Canvas; |
| import android.util.AttributeSet; |
| import android.view.MotionEvent; |
| import android.widget.SeekBar; |
| |
| /** |
| * Class to create a vertical slider |
| */ |
| public class VerticalSeekBar extends SeekBar { |
| |
| public VerticalSeekBar(Context context) { |
| super(context); |
| } |
| |
| public VerticalSeekBar(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| } |
| |
| public VerticalSeekBar(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| protected void onSizeChanged(int w, int h, int oldw, int oldh) { |
| super.onSizeChanged(h, w, oldh, oldw); |
| } |
| |
| @Override |
| protected synchronized void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(heightMeasureSpec, widthMeasureSpec); |
| setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth()); |
| } |
| |
| protected void onDraw(Canvas c) { |
| c.rotate(-90); |
| c.translate(-getHeight(), 0); |
| |
| super.onDraw(c); |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent event) { |
| if (!isEnabled()) { |
| return false; |
| } |
| |
| switch (event.getAction()) { |
| case MotionEvent.ACTION_DOWN: |
| case MotionEvent.ACTION_MOVE: |
| case MotionEvent.ACTION_UP: |
| setProgress(getMax() - (int) (getMax() * event.getY() / getHeight())); |
| onSizeChanged(getWidth(), getHeight(), 0, 0); |
| break; |
| |
| case MotionEvent.ACTION_CANCEL: |
| break; |
| } |
| return true; |
| } |
| } |