Depend on support lib preferences
Bug: 24576551 Change-Id: Ic6190bacd3f7582c9bbc8de972da4612bd92421e
This commit is contained in:
Jason Monk
260
src/com/android/settings/SeekBarPreference.java
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260
src/com/android/settings/SeekBarPreference.java
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/*
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* Copyright (C) 2011 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;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.support.v7.preference.Preference;
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import android.support.v7.preference.PreferenceViewHolder;
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import android.util.AttributeSet;
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import android.view.KeyEvent;
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import android.view.View;
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import android.widget.SeekBar;
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import android.widget.SeekBar.OnSeekBarChangeListener;
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/**
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* Based on android.preference.SeekBarPreference, but uses support preference as base.
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*/
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public class SeekBarPreference extends Preference
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implements OnSeekBarChangeListener, View.OnKeyListener {
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private int mProgress;
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private int mMax;
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private boolean mTrackingTouch;
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public SeekBarPreference(
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Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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TypedArray a = context.obtainStyledAttributes(
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attrs, com.android.internal.R.styleable.ProgressBar, defStyleAttr, defStyleRes);
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setMax(a.getInt(com.android.internal.R.styleable.ProgressBar_max, mMax));
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a.recycle();
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a = context.obtainStyledAttributes(attrs,
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com.android.internal.R.styleable.SeekBarPreference, defStyleAttr, defStyleRes);
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final int layoutResId = a.getResourceId(
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com.android.internal.R.styleable.SeekBarPreference_layout,
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com.android.internal.R.layout.preference_widget_seekbar);
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a.recycle();
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setLayoutResource(layoutResId);
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}
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public SeekBarPreference(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public SeekBarPreference(Context context, AttributeSet attrs) {
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this(context, attrs, com.android.internal.R.attr.seekBarPreferenceStyle);
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}
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public SeekBarPreference(Context context) {
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this(context, null);
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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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view.itemView.setOnKeyListener(this);
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SeekBar seekBar = (SeekBar) view.findViewById(
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com.android.internal.R.id.seekbar);
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seekBar.setOnSeekBarChangeListener(this);
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seekBar.setMax(mMax);
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seekBar.setProgress(mProgress);
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seekBar.setEnabled(isEnabled());
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}
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@Override
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public CharSequence getSummary() {
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return null;
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}
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@Override
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protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
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setProgress(restoreValue ? getPersistedInt(mProgress)
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: (Integer) defaultValue);
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}
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@Override
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protected Object onGetDefaultValue(TypedArray a, int index) {
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return a.getInt(index, 0);
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}
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@Override
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public boolean onKey(View v, int keyCode, KeyEvent event) {
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if (event.getAction() != KeyEvent.ACTION_DOWN) {
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return false;
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}
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SeekBar seekBar = (SeekBar) v.findViewById(com.android.internal.R.id.seekbar);
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if (seekBar == null) {
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return false;
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}
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return seekBar.onKeyDown(keyCode, event);
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}
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public void setMax(int max) {
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if (max != mMax) {
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mMax = max;
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notifyChanged();
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}
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}
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public void setProgress(int progress) {
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setProgress(progress, true);
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}
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private void setProgress(int progress, boolean notifyChanged) {
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if (progress > mMax) {
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progress = mMax;
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}
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if (progress < 0) {
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progress = 0;
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}
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if (progress != mProgress) {
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mProgress = progress;
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persistInt(progress);
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if (notifyChanged) {
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notifyChanged();
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}
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}
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}
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public int getProgress() {
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return mProgress;
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}
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/**
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* Persist the seekBar's progress value if callChangeListener
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* returns true, otherwise set the seekBar's progress to the stored value
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*/
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void syncProgress(SeekBar seekBar) {
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int progress = seekBar.getProgress();
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if (progress != mProgress) {
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if (callChangeListener(progress)) {
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setProgress(progress, false);
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} else {
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seekBar.setProgress(mProgress);
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}
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}
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}
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@Override
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public void onProgressChanged(
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SeekBar seekBar, int progress, boolean fromUser) {
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if (fromUser && !mTrackingTouch) {
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syncProgress(seekBar);
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}
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}
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@Override
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public void onStartTrackingTouch(SeekBar seekBar) {
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mTrackingTouch = true;
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}
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@Override
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public void onStopTrackingTouch(SeekBar seekBar) {
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mTrackingTouch = false;
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if (seekBar.getProgress() != mProgress) {
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syncProgress(seekBar);
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}
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}
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@Override
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protected Parcelable onSaveInstanceState() {
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/*
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* Suppose a client uses this preference type without persisting. We
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* must save the instance state so it is able to, for example, survive
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* orientation changes.
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*/
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final Parcelable superState = super.onSaveInstanceState();
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if (isPersistent()) {
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// No need to save instance state since it's persistent
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return superState;
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}
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// Save the instance state
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final SavedState myState = new SavedState(superState);
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myState.progress = mProgress;
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myState.max = mMax;
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return myState;
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}
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@Override
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protected void onRestoreInstanceState(Parcelable state) {
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if (!state.getClass().equals(SavedState.class)) {
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// Didn't save state for us in onSaveInstanceState
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super.onRestoreInstanceState(state);
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return;
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}
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// Restore the instance state
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SavedState myState = (SavedState) state;
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super.onRestoreInstanceState(myState.getSuperState());
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mProgress = myState.progress;
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mMax = myState.max;
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notifyChanged();
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}
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/**
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* SavedState, a subclass of {@link BaseSavedState}, will store the state
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* of MyPreference, a subclass of Preference.
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* <p>
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* It is important to always call through to super methods.
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*/
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private static class SavedState extends BaseSavedState {
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int progress;
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int max;
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public SavedState(Parcel source) {
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super(source);
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// Restore the click counter
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progress = source.readInt();
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max = source.readInt();
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}
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@Override
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public void writeToParcel(Parcel dest, int flags) {
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super.writeToParcel(dest, flags);
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// Save the click counter
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dest.writeInt(progress);
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dest.writeInt(max);
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}
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public SavedState(Parcelable superState) {
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super(superState);
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}
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@SuppressWarnings("unused")
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public static final Parcelable.Creator<SavedState> CREATOR =
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new Parcelable.Creator<SavedState>() {
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public SavedState createFromParcel(Parcel in) {
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return new SavedState(in);
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}
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public SavedState[] newArray(int size) {
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return new SavedState[size];
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}
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};
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}
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}
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