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Update Settings app to use new brightness dialog

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Bug: 7304957
Change-Id: I3894f6fc9ae1aef92bff328006601af518111983
This commit is contained in:
Michael Wright
2013-02-19 15:25:58 -08:00
parent 5420f85bee
commit e509cba855
3 changed files with 8 additions and 370 deletions
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52
res/layout/preference_dialog_brightness.xml
View File

@@ -1,52 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2008 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.
Copyright (C) 2009 Motorola, Inc.
March 23, 2009 - Motorola - Allow automatic brightness changes.
-->
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center_horizontal"
android:paddingBottom="20dip">
<ImageView android:id="@android:id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="20dip"
android:visibility="gone"
android:contentDescription="@null" />
<CheckBox android:id="@+id/automatic_mode"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/automatic_brightness"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_marginTop="6dip"
android:layout_marginStart="20dip"
android:layout_marginEnd="20dip" />
<SeekBar android:id="@*android:id/seekbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="20dip" />
</LinearLayout>
</ScrollView>

3
res/xml/display_settings.xml
View File

@@ -19,9 +19,8 @@
xmlns:settings="http://schemas.android.com/apk/res/com.android.settings"> xmlns:settings="http://schemas.android.com/apk/res/com.android.settings">
<com.android.settings.BrightnessPreference <com.android.settings.BrightnessPreference
android:key="brightness"
android:title="@string/brightness" android:title="@string/brightness"
android:dialogTitle="@string/brightness" /> android:persistent="false"/>
<PreferenceScreen <PreferenceScreen
android:key="wallpaper" android:key="wallpaper"

323
src/com/android/settings/BrightnessPreference.java
View File

@@ -16,330 +16,21 @@
package com.android.settings; package com.android.settings;
import android.content.ContentResolver;
import android.content.Context; import android.content.Context;
import android.database.ContentObserver; import android.content.Intent;
import android.os.Bundle; import android.os.UserHandle;
import android.os.Handler; import android.preference.Preference;
import android.os.IPowerManager;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.preference.SeekBarDialogPreference;
import android.provider.Settings;
import android.provider.Settings.SettingNotFoundException;
import android.util.AttributeSet; import android.util.AttributeSet;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.SeekBar;
public class BrightnessPreference extends SeekBarDialogPreference implements public class BrightnessPreference extends Preference {
SeekBar.OnSeekBarChangeListener, CheckBox.OnCheckedChangeListener {
// If true, enables the use of the screen auto-brightness adjustment setting.
private static final boolean USE_SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT =
PowerManager.useScreenAutoBrightnessAdjustmentFeature();
private final int mScreenBrightnessMinimum;
private final int mScreenBrightnessMaximum;
private SeekBar mSeekBar;
private CheckBox mCheckBox;
private int mOldBrightness;
private int mOldAutomatic;
private boolean mAutomaticAvailable;
private boolean mAutomaticMode;
private int mCurBrightness = -1;
private boolean mRestoredOldState;
private static final int SEEK_BAR_RANGE = 10000;
private ContentObserver mBrightnessObserver = new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
mCurBrightness = -1;
onBrightnessChanged();
}
};
private ContentObserver mBrightnessModeObserver = new ContentObserver(new Handler()) {
@Override
public void onChange(boolean selfChange) {
onBrightnessModeChanged();
}
};
public BrightnessPreference(Context context, AttributeSet attrs) { public BrightnessPreference(Context context, AttributeSet attrs) {
super(context, attrs); super(context, attrs);
PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
mScreenBrightnessMinimum = pm.getMinimumScreenBrightnessSetting();
mScreenBrightnessMaximum = pm.getMaximumScreenBrightnessSetting();
mAutomaticAvailable = context.getResources().getBoolean(
com.android.internal.R.bool.config_automatic_brightness_available);
setDialogLayoutResource(R.layout.preference_dialog_brightness);
setDialogIcon(R.drawable.ic_settings_display);
} }
@Override @Override
protected void showDialog(Bundle state) { protected void onClick() {
super.showDialog(state); Intent intent = new Intent(Intent.ACTION_SHOW_BRIGHTNESS_DIALOG);
getContext().sendBroadcastAsUser(intent, UserHandle.CURRENT_OR_SELF);
getContext().getContentResolver().registerContentObserver(
Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS), true,
mBrightnessObserver);
getContext().getContentResolver().registerContentObserver(
Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS_MODE), true,
mBrightnessModeObserver);
mRestoredOldState = false;
}
@Override
protected void onBindDialogView(View view) {
super.onBindDialogView(view);
mSeekBar = getSeekBar(view);
mSeekBar.setMax(SEEK_BAR_RANGE);
mOldBrightness = getBrightness();
mSeekBar.setProgress(mOldBrightness);
mCheckBox = (CheckBox)view.findViewById(R.id.automatic_mode);
if (mAutomaticAvailable) {
mCheckBox.setOnCheckedChangeListener(this);
mOldAutomatic = getBrightnessMode(0);
mAutomaticMode = mOldAutomatic == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC;
mCheckBox.setChecked(mAutomaticMode);
mSeekBar.setEnabled(!mAutomaticMode || USE_SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT);
} else {
mCheckBox.setVisibility(View.GONE);
mSeekBar.setEnabled(true);
}
mSeekBar.setOnSeekBarChangeListener(this);
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromTouch) {
setBrightness(progress, false);
}
public void onStartTrackingTouch(SeekBar seekBar) {
// NA
}
public void onStopTrackingTouch(SeekBar seekBar) {
// NA
}
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
setMode(isChecked ? Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC
: Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL);
mSeekBar.setProgress(getBrightness());
mSeekBar.setEnabled(!mAutomaticMode || USE_SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT);
setBrightness(mSeekBar.getProgress(), false);
}
private int getBrightness() {
int mode = getBrightnessMode(0);
float brightness = 0;
if (USE_SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT
&& mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC) {
brightness = Settings.System.getFloat(getContext().getContentResolver(),
Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0);
brightness = (brightness+1)/2;
} else {
if (mCurBrightness < 0) {
brightness = Settings.System.getInt(getContext().getContentResolver(),
Settings.System.SCREEN_BRIGHTNESS, 100);
} else {
brightness = mCurBrightness;
}
brightness = (brightness - mScreenBrightnessMinimum)
/ (mScreenBrightnessMaximum - mScreenBrightnessMinimum);
}
return (int)(brightness*SEEK_BAR_RANGE);
}
private int getBrightnessMode(int defaultValue) {
int brightnessMode = defaultValue;
try {
brightnessMode = Settings.System.getInt(getContext().getContentResolver(),
Settings.System.SCREEN_BRIGHTNESS_MODE);
} catch (SettingNotFoundException snfe) {
}
return brightnessMode;
}
private void onBrightnessChanged() {
mSeekBar.setProgress(getBrightness());
}
private void onBrightnessModeChanged() {
boolean checked = getBrightnessMode(0)
== Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC;
mCheckBox.setChecked(checked);
mSeekBar.setProgress(getBrightness());
mSeekBar.setEnabled(!checked || USE_SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT);
}
@Override
protected void onDialogClosed(boolean positiveResult) {
super.onDialogClosed(positiveResult);
final ContentResolver resolver = getContext().getContentResolver();
if (positiveResult) {
setBrightness(mSeekBar.getProgress(), true);
} else {
restoreOldState();
}
resolver.unregisterContentObserver(mBrightnessObserver);
resolver.unregisterContentObserver(mBrightnessModeObserver);
}
private void restoreOldState() {
if (mRestoredOldState) return;
if (mAutomaticAvailable) {
setMode(mOldAutomatic);
}
setBrightness(mOldBrightness, false);
mRestoredOldState = true;
mCurBrightness = -1;
}
private void setBrightness(int brightness, boolean write) {
if (mAutomaticMode) {
if (USE_SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT) {
float valf = (((float)brightness*2)/SEEK_BAR_RANGE) - 1.0f;
try {
IPowerManager power = IPowerManager.Stub.asInterface(
ServiceManager.getService("power"));
if (power != null) {
power.setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(valf);
}
if (write) {
final ContentResolver resolver = getContext().getContentResolver();
Settings.System.putFloat(resolver,
Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, valf);
}
} catch (RemoteException doe) {
}
}
} else {
int range = (mScreenBrightnessMaximum - mScreenBrightnessMinimum);
brightness = (brightness * range)/SEEK_BAR_RANGE + mScreenBrightnessMinimum;
try {
IPowerManager power = IPowerManager.Stub.asInterface(
ServiceManager.getService("power"));
if (power != null) {
power.setTemporaryScreenBrightnessSettingOverride(brightness);
}
if (write) {
mCurBrightness = -1;
final ContentResolver resolver = getContext().getContentResolver();
Settings.System.putInt(resolver,
Settings.System.SCREEN_BRIGHTNESS, brightness);
} else {
mCurBrightness = brightness;
}
} catch (RemoteException doe) {
}
}
}
private void setMode(int mode) {
mAutomaticMode = mode == Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC;
Settings.System.putInt(getContext().getContentResolver(),
Settings.System.SCREEN_BRIGHTNESS_MODE, mode);
}
@Override
protected Parcelable onSaveInstanceState() {
final Parcelable superState = super.onSaveInstanceState();
if (getDialog() == null || !getDialog().isShowing()) return superState;
// Save the dialog state
final SavedState myState = new SavedState(superState);
myState.automatic = mCheckBox.isChecked();
myState.progress = mSeekBar.getProgress();
myState.oldAutomatic = mOldAutomatic == 1;
myState.oldProgress = mOldBrightness;
myState.curBrightness = mCurBrightness;
// Restore the old state when the activity or dialog is being paused
restoreOldState();
return myState;
}
@Override
protected void onRestoreInstanceState(Parcelable state) {
if (state == null || !state.getClass().equals(SavedState.class)) {
// Didn't save state for us in onSaveInstanceState
super.onRestoreInstanceState(state);
return;
}
SavedState myState = (SavedState) state;
super.onRestoreInstanceState(myState.getSuperState());
mOldBrightness = myState.oldProgress;
mOldAutomatic = myState.oldAutomatic ? 1 : 0;
setMode(myState.automatic ? 1 : 0);
setBrightness(myState.progress, false);
mCurBrightness = myState.curBrightness;
}
private static class SavedState extends BaseSavedState {
boolean automatic;
boolean oldAutomatic;
int progress;
int oldProgress;
int curBrightness;
public SavedState(Parcel source) {
super(source);
automatic = source.readInt() == 1;
progress = source.readInt();
oldAutomatic = source.readInt() == 1;
oldProgress = source.readInt();
curBrightness = source.readInt();
}
@Override
public void writeToParcel(Parcel dest, int flags) {
super.writeToParcel(dest, flags);
dest.writeInt(automatic ? 1 : 0);
dest.writeInt(progress);
dest.writeInt(oldAutomatic ? 1 : 0);
dest.writeInt(oldProgress);
dest.writeInt(curBrightness);
}
public SavedState(Parcelable superState) {
super(superState);
}
public static final Parcelable.Creator<SavedState> CREATOR =
new Parcelable.Creator<SavedState>() {
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
} }
} }