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/*
* Copyright (C) 2020 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.emergency.widgets.slider;
import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.SeekBar;
import android.widget.TextView;
import com.android.emergency.action.R;
/**
* A slider button. User can slide the thumb/scrim from one end to the other end to activate the
* button.
*/
public final class SliderView extends FrameLayout
implements SeekBar.OnSeekBarChangeListener {
private SliderSeekBar mSliderSeekBar;
private View mSliderTextContainer;
private TextView mSliderTextView;
public SliderView(Context context) {
super(context);
init(null, 0);
}
public SliderView(Context context, AttributeSet attrs) {
super(context, attrs);
init(attrs, 0);
}
public SliderView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(attrs, defStyleAttr);
}
public SliderView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
init(attrs, defStyleAttr);
}
private void init(AttributeSet attrs, int defStyle) {
inflate(getContext(), R.layout.slider_view, this);
mSliderTextView = findViewById(android.R.id.title);
mSliderSeekBar = findViewById(R.id.slider_seek_bar);
mSliderTextContainer = findViewById(R.id.slider_text_container);
mSliderSeekBar.setOnSeekBarChangeListener(this);
String slideText;
TypedArray a =
getContext()
.getTheme()
.obtainStyledAttributes(attrs, R.styleable.SliderView, defStyle, defStyle);
slideText = a.getString(R.styleable.SliderView_android_text);
if (a.hasValue(R.styleable.SliderView_android_thumb)) {
// Updating thumb drawable clears the offset. Cache it first.
int thumbOffSet = mSliderSeekBar.getThumbOffset();
mSliderSeekBar.setThumb(a.getDrawable(R.styleable.SliderView_android_thumb));
mSliderSeekBar.setThumbOffset(thumbOffSet);
}
setText(slideText);
a.recycle();
}
public void setText(CharSequence text) {
mSliderTextView.setText(text);
}
public void setSlideCompleteListener(OnSlideCompleteListener listener) {
mSliderSeekBar.setOnSlideCompleteListener(listener);
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
// Dim text as slider makes progress
mSliderTextContainer.setAlpha(1 - (progress / (float) SliderSeekBar.SLIDE_MAX_SLIDE_SCALE));
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
}
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