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Initial implementation of allowing the user to reduce screen resolution to save power
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Tad
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cfaed310f1
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16
Misc/Scaling.txt
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16
Misc/Scaling.txt
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@ -0,0 +1,16 @@
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//frameworks/base/cmds/wm/src/com/android/commands/wm/Wm.java
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IWindowManager mWm = IWindowManager.Stub.asInterface(ServiceManager.checkService(
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Context.WINDOW_SERVICE));
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Point initialSize = new Point();
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Point baseSize = new Point();
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mWm.getInitialDisplaySize(Display.DEFAULT_DISPLAY, initialSize); //Get true size
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mWm.getBaseDisplaySize(Display.DEFAULT_DISPLAY, baseSize); //Get current size
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mWm.setForcedDisplaySize(Display.DEFAULT_DISPLAY, w, h); //Set to custom size
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mWm.clearForcedDisplaySize(Display.DEFAULT_DISPLAY); //Reset to true size
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1440*2560
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1080*1920
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720*1280
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@ -0,0 +1,84 @@
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From 259267c0ffa34a99aad3af08d58dfd5aa340bd04 Mon Sep 17 00:00:00 2001
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From: Tad <tad@spotco.us>
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Date: Fri, 20 Oct 2017 15:29:25 -0400
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Subject: [PATCH] Reduced Resolution Feature 2/2
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Change-Id: Ib3d363e4fc66821ebb5303a974589c0b18c5ef9b
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---
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core/java/android/os/PowerManager.java | 46 ++++++++++++++++++++++++++++++++++
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1 file changed, 46 insertions(+)
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diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
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index 5c8effec0ed..62954ddadea 100644
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--- a/core/java/android/os/PowerManager.java
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+++ b/core/java/android/os/PowerManager.java
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@@ -438,6 +438,8 @@ public final class PowerManager {
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final IPowerManager mService;
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final Handler mHandler;
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+ final IWindowManager mWm;
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+
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IDeviceIdleController mIDeviceIdleController;
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/**
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@@ -447,6 +449,9 @@ public final class PowerManager {
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mContext = context;
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mService = service;
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mHandler = handler;
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+
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+ mWm = IWindowManager.Stub.asInterface(ServiceManager.checkService(
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+ Context.WINDOW_SERVICE));
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}
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/**
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@@ -988,6 +993,47 @@ public final class PowerManager {
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}
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}
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+ public boolean isReducedResolution() {
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+ try {
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+ Point initialSize = new Point();
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+ Point baseSize = new Point();
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+
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+ mWm.getInitialDisplaySize(Display.DEFAULT_DISPLAY, initialSize);
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+ mWm.getBaseDisplaySize(Display.DEFAULT_DISPLAY, baseSize);
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+
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+ return !initialSize.equals(baseSize);
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+ } catch (Exception e) {
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+ throw e.rethrowFromSystemServer();
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+ }
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+ }
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+
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+ public boolean setReducedResolution(boolean mode) {
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+ try {
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+ if (mode) {
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+ Point initialSize = new Point();
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+ mWm.getInitialDisplaySize(Display.DEFAULT_DISPLAY, initialSize);
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+
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+ Point newSize;
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+
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+ switch(initialSize.x) {
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+ case 1440:
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+ newSize = new Point(1080, 1920);
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+ case 1080:
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+ newSize = new Point(720, 1280);
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+ default:
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+ return false;
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+ }
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+
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+ mWm.setForcedDisplaySize(Display.DEFAULT_DISPLAY, newSize.x, newSize.y);
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+ } else {
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+ mWm.clearForcedDisplaySize(Display.DEFAULT_DISPLAY);
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+ }
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+ return isReducedResolution();
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+ } catch (Exception e) {
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+ throw e.rethrowFromSystemServer();
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+ }
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+ }
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+
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/**
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* Returns true if the device is currently in idle mode. This happens when a device
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* has been sitting unused and unmoving for a sufficiently long period of time, so that
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--
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2.14.2
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@ -0,0 +1,104 @@
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From 4205a403acba83df87feef538bd9495f3f49c951 Mon Sep 17 00:00:00 2001
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From: Tad <tad@spotco.us>
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Date: Fri, 20 Oct 2017 15:28:00 -0400
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Subject: [PATCH] Reduced Resolution Feature 1/2
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Change-Id: Id76c429a7bf806db59726d7d64a4dca267cb36c1
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---
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res/values/strings.xml | 2 ++
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res/xml/perf_profile_settings.xml | 5 +++++
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.../cyanogenmod/cmparts/power/PerfProfileSettings.java | 16 ++++++++++++++++
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3 files changed, 23 insertions(+)
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diff --git a/res/values/strings.xml b/res/values/strings.xml
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index a7e31ca..cfaef0b 100644
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--- a/res/values/strings.xml
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+++ b/res/values/strings.xml
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@@ -576,6 +576,8 @@
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<string name="power_save_category_title">Battery saving</string>
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<string name="power_save_title">Extreme power saver</string>
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<string name="power_save_summary">Restrict device performance and background activity to save power</string>
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+ <string name="reduce_resolution_title">Reduce screen resolution</string>
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+ <string name="reduce_resolution_summary">Lowers the screen resolution to save power</string>
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<string name="auto_power_save_title">Automatic power saver</string>
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<string name="auto_power_save_summary_on">Automatically enable power save mode at %s battery</string>
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<string name="auto_power_save_summary_off">Do not enable power save mode automatically</string>
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diff --git a/res/xml/perf_profile_settings.xml b/res/xml/perf_profile_settings.xml
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index 3585cb7..0513137 100644
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--- a/res/xml/perf_profile_settings.xml
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+++ b/res/xml/perf_profile_settings.xml
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@@ -29,6 +29,11 @@
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android:summary="@string/power_save_summary"
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android:persistent="false" />
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+ <SwitchPreference
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+ android:key="reduce_resolution"
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+ android:title="@string/reduce_resolution_title"
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+ android:summary="@string/reduce_resoution_summary" />
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+
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<ListPreference
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android:key="auto_power_save"
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android:title="@string/auto_power_save_title"
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diff --git a/src/org/cyanogenmod/cmparts/power/PerfProfileSettings.java b/src/org/cyanogenmod/cmparts/power/PerfProfileSettings.java
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index ec2138d..d77c51c 100644
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--- a/src/org/cyanogenmod/cmparts/power/PerfProfileSettings.java
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+++ b/src/org/cyanogenmod/cmparts/power/PerfProfileSettings.java
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@@ -56,11 +56,13 @@ public class PerfProfileSettings extends SettingsPreferenceFragment
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private static final String KEY_PERF_PROFILE_CATEGORY = "perf_profile_category";
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private static final String KEY_AUTO_POWER_SAVE = "auto_power_save";
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private static final String KEY_POWER_SAVE = "power_save";
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+ private static final String KEY_REDUCE_RESOLUTION = "reduce_resolution";
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private static final String KEY_PER_APP_PROFILES = "app_perf_profiles_enabled";
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private static final String KEY_PERF_SEEKBAR = "perf_seekbar";
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private ListPreference mAutoPowerSavePref;
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private SwitchPreference mPowerSavePref;
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+ private SwitchPreference mReduceResolutionPref;
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private SeekBarPreference mPerfSeekBar;
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private StopMotionVectorDrawable mPerfDrawable;
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@@ -90,6 +92,7 @@ public class PerfProfileSettings extends SettingsPreferenceFragment
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mPerfSeekBar = (SeekBarPreference) findPreference(KEY_PERF_SEEKBAR);
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mAutoPowerSavePref = (ListPreference) findPreference(KEY_AUTO_POWER_SAVE);
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mPowerSavePref = (SwitchPreference) findPreference(KEY_POWER_SAVE);
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+ mReduceResolutionPref = (SwitchPreference) findPreference(KEY_REDUCE_RESOLUTION);
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mPerAppProfilesPref = (SwitchPreference) findPreference(KEY_PER_APP_PROFILES);
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mPowerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
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@@ -124,6 +127,7 @@ public class PerfProfileSettings extends SettingsPreferenceFragment
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updateAutoPowerSaveValue();
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mAutoPowerSavePref.setOnPreferenceChangeListener(this);
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mPowerSavePref.setOnPreferenceChangeListener(this);
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+ mReduceResolutionPref.setOnPreferenceChangeListener(this);
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}
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@@ -245,6 +249,14 @@ public class PerfProfileSettings extends SettingsPreferenceFragment
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final int level = Integer.parseInt((String) newValue);
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Global.putInt(getContentResolver(), Global.LOW_POWER_MODE_TRIGGER_LEVEL, level);
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updateAutoPowerSaveSummary(level);
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+ } else if (preference = mReduceResolutionPref) {
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+ if (!mPowerManager.setReducedResolution((boolean) newValue)) {
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+ // Don't just fail silently, inform the user as well
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+ Toast.makeText(getActivity(),
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+ R.string.perf_profile_fail_toast, Toast.LENGTH_SHORT).show();
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+ return false;
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+ }
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+ updateReducedResolutionValue();
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}
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return true;
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}
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@@ -262,6 +274,10 @@ public class PerfProfileSettings extends SettingsPreferenceFragment
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PartsUpdater.notifyChanged(getActivity(), getPreferenceScreen().getKey());
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}
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+ private void updateReduceResolutionValue() {
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+ mReduceResolution.setChecked(mPowerManager.isReducedResolution());
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+ }
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+
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private void updateAutoPowerSaveValue() {
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final int level = Global.getInt(
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getContentResolver(), Global.LOW_POWER_MODE_TRIGGER_LEVEL, 0);
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--
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2.14.2
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@ -3,8 +3,6 @@
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#Attempts to increase performance and battery life
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#TODO: Aggressive Doze (Easy), Lower screen resolutions (Hard)
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base="/mnt/Drive-1/Development/Other/Android_ROMs/Build/LineageOS-14.1/"
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echo "Optimizing..."
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@ -108,6 +108,7 @@ sed -i 's/com.android.messaging/org.smssecure.smssecure/' core/res/res/values/co
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sed -i 's|config_longPressOnHomeBehavior">2|config_longPressOnHomeBehavior">0|' core/res/res/values/config.xml;
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sed -i 's|config_doubleTapOnHomeBehavior">0|config_doubleTapOnHomeBehavior">8|' core/res/res/values/config.xml;
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sed -i 's|config_permissionReviewRequired">false|config_permissionReviewRequired">true|' core/res/res/values/config.xml;
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patch -p1 < $patches"android_frameworks_base/0001-Reduced_Resolution.patch" #Allow reducing resolution to save power
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patch -p1 < $patches"android_frameworks_base/0003-Signature_Spoofing.patch" #Allow packages to spoof their signature (MicroG)
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patch -p1 < $patches"android_frameworks_base/0005-Harden_Sig_Spoofing.patch" #Restrict signature spoofing to system apps signed with the platform key
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rm -rf packages/PrintRecommendationService; #App that just creates popups to install proprietary print apps
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@ -121,6 +122,7 @@ rm -rf src/org/cyanogenmod/cmparts/cmstats/ res/xml/anonymous_stats.xml res/xml/
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git fetch https://review.lineageos.org/LineageOS/android_packages_apps_CMParts refs/changes/15/113415/25 && git cherry-pick FETCH_HEAD #network traffic
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sed -i 's|config_showWeatherMenu">true|config_showWeatherMenu">false|' res/values/config.xml; #Disable Weather
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patch -p1 < $patches"android_packages_apps_CMParts/0001-Remove_Analytics.patch" #Remove the rest of CMStats
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patch -p1 < $patches"android_packages_apps_CMParts/0002-Reduced_Resolution.patch" #Allow reducing resolution to save power
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enter "packages/apps/Updater"
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patch -p1 < $patches"android_packages_apps_Updater/0001-Server.patch" #Switch to our server
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