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默认关闭定位和GPS 修改位置

frameworks/base/packages/SettingsProvider/res/values/defaults.xml

   
    network,gps
   修改为
   

默认省电 修改位置

com/android/settings/location/LocationSettings.java

public class LocationSettings extends LocationSettingsBase     @Override     public void onSwitchChanged(Switch switchView, boolean isChecked) {
            if (isChecked) {
            //setLocationMode(android.provider.Settings.Secure.LOCATION_MODE_HIGH_ACCURACY);	             setLocationMode(android.provider.Settings.Secure.LOCATION_MODE_BATTERY_SAVING);         } else {
                setLocationMode(android.provider.Settings.Secure.LOCATION_MODE_OFF);         }

查看当前模式

adb shell settings get secure location_providers_allowed

1.关闭location:

结果空

2.开location,high_accuracy模式

network,gps

3.开location,battery_saving模式

network

4.开location,sensors_only模式

gps

永不休眠

方法一

packages/apps/Provision/src/com/android/provision/DefaultActivity.java

增加配置

Settings.System.putInt(getContentResolver(),                        Settings.System.SCREEN_OFF_TIMEOUT, Integer.MAX_VALUE);

packages/apps/Settings/src/com/android/settings/DisplaySettings.java

private void updateTimeoutPreferenceDescription(long currentTimeout) {
          ListPreference preference = mScreenTimeoutPreference;       String summary="";       if (currentTimeout < 0) {
               // Unsupported value            summary = "";        } else {
               final CharSequence[] entries = preference.getEntries();            final CharSequence[] values = preference.getEntryValues();            if (entries == null || entries.length == 0) {
                   summary = "";            } else {
                   int best = 0;                for (int i = 0; i < values.length; i++) {
                       long timeout = Long.parseLong(values[i].toString());                    if (currentTimeout >= timeout) {
                           best = i;                    }                }				//cczheng add if				if(currentTimeout == Integer.MAX_VALUE)				  summary = entries[best].toString();				else                  summary = preference.getContext().getString(R.string.screen_timeout_summary,                        entries[best]);            }        }        preference.setSummary(summary);    }

修改对应的资源文件值

packages/apps/Settings/res/values-zh-rCN/arrays.xml

           
    
     15 seconds
            
    
     30 seconds
            
    
     1 minute
            
    
     2 minutes
            
    
     5 minutes
            
    
     10 minutes
            
    
     30 minutes
            
    
     never
        
       
       
           
            
    
     15000
            
            
    
     30000
            
            
    
     60000
            
            
    
     120000
            
            
    
     300000
            
            
    
     600000
            
            
    
     1800000
        	
            
    
     2147483647
        
   	
       
    
     "15秒"
        
    
     "30秒"
        
    
     "1分钟"
        
    
     "2分钟"
        
    
     "5分钟"
        
    
     "10分钟"
        
    
     "30分钟"
        
    
     "永不"
        
   

方法二

frameworks/base/core/res/res/values/config.xml

   
    -1
   

frameworks/base/services/core/java/com/android/server/power/PowerManagerService.java

private int getScreenOffTimeoutLocked(int sleepTimeout) {
   		....	if (sleepTimeout >= 0) {
   		timeout = Math.min(timeout, sleepTimeout);	}	if (mMinimumScreenOffTimeoutConfig < 0 ) {
   		return mMaximumScreenOffTimeoutFromDeviceAdmin;	}	return Math.max(timeout, mMinimumScreenOffTimeoutConfig);}

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