Add CustomSeekBarPreference
Change-Id: I374ceb023a418f72778539d1c227ee987b3978a1 Signed-off-by: xyyx <xyyx@mail.ru>
This commit is contained in:
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/*
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* Copyright (C) 2016 The Dirty Unicorns 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.cherish.settings.preferences;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.ViewParent;
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import android.view.ViewGroup;
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import android.widget.SeekBar;
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import android.widget.TextView;
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import android.support.v7.preference.*;
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import com.android.settings.R;
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public class CustomSeekBarPreference extends Preference implements SeekBar.OnSeekBarChangeListener {
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private final String TAG = getClass().getName();
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private static final String SETTINGS_NS = "http://schemas.android.com/apk/res/com.android.settings";
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private static final String ANDROIDNS = "http://schemas.android.com/apk/res/android";
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private static final int DEFAULT_VALUE = 50;
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private int mMin = 0;
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private int mInterval = 1;
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private int mCurrentValue;
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private int mDefaultValue = -1;
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private int mMax = 100;
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private String mUnits = "";
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private SeekBar mSeekBar;
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private TextView mTitle;
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private TextView mStatusText;
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public CustomSeekBarPreference(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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final TypedArray a = context.obtainStyledAttributes(
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attrs, R.styleable.CustomSeekBarPreference);
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mMax = attrs.getAttributeIntValue(SETTINGS_NS, "max", 100);
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mMin = attrs.getAttributeIntValue(SETTINGS_NS, "min", 0);
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mDefaultValue = attrs.getAttributeIntValue(ANDROIDNS, "defaultValue", -1);
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mUnits = getAttributeStringValue(attrs, SETTINGS_NS, "units", "");
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Integer id = a.getResourceId(R.styleable.CustomSeekBarPreference_units, 0);
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if (id > 0) {
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mUnits = context.getResources().getString(id);
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}
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try {
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String newInterval = attrs.getAttributeValue(SETTINGS_NS, "interval");
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if (newInterval != null)
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mInterval = Integer.parseInt(newInterval);
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} catch (Exception e) {
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Log.e(TAG, "Invalid interval value", e);
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}
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a.recycle();
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mSeekBar = new SeekBar(context, attrs);
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mSeekBar.setMax(mMax - mMin);
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mSeekBar.setOnSeekBarChangeListener(this);
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setLayoutResource(R.layout.preference_cherish_seekbar);
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}
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public CustomSeekBarPreference(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public CustomSeekBarPreference(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public CustomSeekBarPreference(Context context) {
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this(context, null);
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}
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private String getAttributeStringValue(AttributeSet attrs, String namespace, String name,
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String defaultValue) {
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String value = attrs.getAttributeValue(namespace, name);
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if (value == null)
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value = defaultValue;
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return value;
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}
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@Override
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public void onDependencyChanged(Preference dependency, boolean disableDependent) {
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super.onDependencyChanged(dependency, disableDependent);
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this.setShouldDisableView(true);
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if (mTitle != null)
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mTitle.setEnabled(!disableDependent);
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if (mSeekBar != null)
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mSeekBar.setEnabled(!disableDependent);
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if (mStatusText != null)
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mStatusText.setEnabled(!disableDependent);
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}
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@Override
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public void onBindViewHolder(PreferenceViewHolder view) {
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super.onBindViewHolder(view);
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try
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{
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// move our seekbar to the new view we've been given
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ViewParent oldContainer = mSeekBar.getParent();
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ViewGroup newContainer = (ViewGroup) view.findViewById(R.id.seekBarPrefBarContainer);
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if (oldContainer != newContainer) {
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// remove the seekbar from the old view
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if (oldContainer != null) {
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((ViewGroup) oldContainer).removeView(mSeekBar);
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}
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// remove the existing seekbar (there may not be one) and add ours
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newContainer.removeAllViews();
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newContainer.addView(mSeekBar, ViewGroup.LayoutParams.FILL_PARENT,
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ViewGroup.LayoutParams.WRAP_CONTENT);
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}
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} catch (Exception ex) {
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Log.e(TAG, "Error binding view: " + ex.toString());
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}
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mStatusText = (TextView) view.findViewById(R.id.seekBarPrefValue);
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mStatusText.setText(String.valueOf(mCurrentValue) + mUnits);
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mStatusText.setMinimumWidth(30);
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mSeekBar.setProgress(mCurrentValue - mMin);
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mTitle = (TextView) view.findViewById(android.R.id.title);
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}
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public void setMax(int max) {
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mMax = max;
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}
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public void setMin(int min) {
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mMin = min;
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}
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public void setIntervalValue(int value) {
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mInterval = value;
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}
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public void setValue(int value) {
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mCurrentValue = value;
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}
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@Override
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public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
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int newValue = progress + mMin;
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if (newValue > mMax)
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newValue = mMax;
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else if (newValue < mMin)
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newValue = mMin;
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else if (mInterval != 1 && newValue % mInterval != 0)
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newValue = Math.round(((float) newValue) / mInterval) * mInterval;
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// change rejected, revert to the previous value
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if (!callChangeListener(newValue)) {
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seekBar.setProgress(mCurrentValue - mMin);
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return;
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}
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// change accepted, store it
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mCurrentValue = newValue;
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if (mStatusText != null) {
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mStatusText.setText(String.valueOf(newValue) + mUnits);
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}
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persistInt(newValue);
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}
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@Override
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public void onStartTrackingTouch(SeekBar seekBar) {
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}
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@Override
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public void onStopTrackingTouch(SeekBar seekBar) {
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notifyChanged();
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}
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@Override
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protected Object onGetDefaultValue(TypedArray ta, int index) {
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int defaultValue = ta.getInt(index, DEFAULT_VALUE);
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return defaultValue;
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}
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@Override
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protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
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if (restoreValue) {
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mCurrentValue = getPersistedInt(mCurrentValue);
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}
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else {
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int temp = 0;
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try {
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temp = (Integer) defaultValue;
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} catch (Exception ex) {
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Log.e(TAG, "Invalid default value: " + defaultValue.toString());
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}
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persistInt(temp);
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mCurrentValue = temp;
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}
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}
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@Override
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public void setEnabled(boolean enabled) {
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if (mSeekBar != null && mStatusText != null && mTitle != null) {
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mSeekBar.setEnabled(enabled);
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mStatusText.setEnabled(enabled);
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mTitle.setEnabled(enabled);
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}
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super.setEnabled(enabled);
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}
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}
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