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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:32:34 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:32:34 -0800 |
commit | afc4ab2ffbb8327ddce9907961295a32cbf49d0f (patch) | |
tree | 64baf0ce0e3c9fb39cc086994dbe9805b74e5bca /src/com/android/settings/BrightnessPreference.java | |
parent | 4e14e5ccbf1ef27220419849133d482a546d5c04 (diff) | |
download | packages_apps_settings-afc4ab2ffbb8327ddce9907961295a32cbf49d0f.zip packages_apps_settings-afc4ab2ffbb8327ddce9907961295a32cbf49d0f.tar.gz packages_apps_settings-afc4ab2ffbb8327ddce9907961295a32cbf49d0f.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'src/com/android/settings/BrightnessPreference.java')
-rw-r--r-- | src/com/android/settings/BrightnessPreference.java | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/com/android/settings/BrightnessPreference.java b/src/com/android/settings/BrightnessPreference.java new file mode 100644 index 0000000..a9851cc --- /dev/null +++ b/src/com/android/settings/BrightnessPreference.java @@ -0,0 +1,103 @@ +/* + * 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. + */ + +package com.android.settings; + +import android.content.Context; +import android.os.RemoteException; +import android.os.IHardwareService; +import android.os.ServiceManager; +import android.preference.SeekBarPreference; +import android.provider.Settings; +import android.provider.Settings.SettingNotFoundException; +import android.util.AttributeSet; +import android.util.Log; +import android.view.View; +import android.widget.SeekBar; + +import java.util.Map; + +public class BrightnessPreference extends SeekBarPreference implements + SeekBar.OnSeekBarChangeListener { + + private SeekBar mSeekBar; + + private int mOldBrightness; + + // Backlight range is from 0 - 255. Need to make sure that user + // doesn't set the backlight to 0 and get stuck + private static final int MINIMUM_BACKLIGHT = android.os.Power.BRIGHTNESS_DIM + 10; + private static final int MAXIMUM_BACKLIGHT = android.os.Power.BRIGHTNESS_ON; + + public BrightnessPreference(Context context, AttributeSet attrs) { + super(context, attrs); + } + + @Override + protected void onBindDialogView(View view) { + super.onBindDialogView(view); + + mSeekBar = getSeekBar(view); + mSeekBar.setOnSeekBarChangeListener(this); + mSeekBar.setMax(MAXIMUM_BACKLIGHT - MINIMUM_BACKLIGHT); + try { + mOldBrightness = Settings.System.getInt(getContext().getContentResolver(), + Settings.System.SCREEN_BRIGHTNESS); + } catch (SettingNotFoundException snfe) { + mOldBrightness = MAXIMUM_BACKLIGHT; + } + mSeekBar.setProgress(mOldBrightness - MINIMUM_BACKLIGHT); + } + + public void onProgressChanged(SeekBar seekBar, int progress, + boolean fromTouch) { + setBrightness(progress + MINIMUM_BACKLIGHT); + } + + public void onStartTrackingTouch(SeekBar seekBar) { + // NA + } + + public void onStopTrackingTouch(SeekBar seekBar) { + // NA + } + + @Override + protected void onDialogClosed(boolean positiveResult) { + super.onDialogClosed(positiveResult); + + if (positiveResult) { + Settings.System.putInt(getContext().getContentResolver(), + Settings.System.SCREEN_BRIGHTNESS, + mSeekBar.getProgress() + MINIMUM_BACKLIGHT); + } else { + setBrightness(mOldBrightness); + } + } + + private void setBrightness(int brightness) { + try { + IHardwareService hardware = IHardwareService.Stub.asInterface( + ServiceManager.getService("hardware")); + if (hardware != null) { + hardware.setScreenBacklight(brightness); + } + } catch (RemoteException doe) { + + } + } +} + |