前言
本文为继RK3128 Android 7 BOX SDK 修改为MID界面 与 RK3128 Android 7 BOX SDK 修改为MID界面-近期任务 后续.
问题
三方应用无法通过接收开机完成广播(BOOT_COMPLETED)完成自启.
LOG如下
Unable to launch app com.test/10033 for broadcast Intent
{ act=android.intent.action.BOOT_COMPLETED flg=0x9000010 (has extras) }: process is bad
分析解决
首先, LOG输出的位置:
frameworks/base/services/core/java/com/android/server/am/BroadcastQueue.java
if ((r.curApp=mService.startProcessLocked(targetProcess,
info.activityInfo.applicationInfo, true,
r.intent.getFlags() | Intent.FLAG_FROM_BACKGROUND,
"broadcast", r.curComponent,
(r.intent.getFlags()&Intent.FLAG_RECEIVER_BOOT_UPGRADE) != 0, false, false))
== null) {
// Ah, this recipient is unavailable. Finish it if necessary,
// and mark the broadcast record as ready for the next.
Slog.w(TAG, "Unable to launch app "
+ info.activityInfo.applicationInfo.packageName + "/"
+ info.activityInfo.applicationInfo.uid + " for broadcast "
+ r.intent + ": process is bad");
frameworks/base/services/core/java/com/android/server/am/ActivityManagerService.java
final ProcessRecord startProcessLocked(String processName,
ApplicationInfo info, boolean knownToBeDead, int intentFlags,
String hostingType, ComponentName hostingName, boolean allowWhileBooting,
boolean isolated, boolean keepIfLarge) {
return startProcessLocked(processName, info, knownToBeDead, intentFlags, hostingType,
hostingName, allowWhileBooting, isolated, 0 /* isolatedUid */, keepIfLarge,
null /* ABI override */, null /* entryPoint */, null /* entryPointArgs */,
null /* crashHandler */);
}
final ProcessRecord startProcessLocked(String processName, ApplicationInfo info,
boolean knownToBeDead, int intentFlags, String hostingType, ComponentName hostingName,
boolean allowWhileBooting, boolean isolated, int isolatedUid, boolean keepIfLarge,
String abiOverride, String entryPoint, String[] entryPointArgs, Runnable crashHandler) {
//...省略中间代码...
if((("true".equals(SystemProperties.get("ro.config.low_ram", "false")))
||("true".equals(SystemProperties.get("ro.mem_optimise.enable", "false")))) && (!"true".equals(SystemProperties.get("cts_gts.status", "false")))){
final ActivityRecord next = getFocusedStack().topRunningActivityLocked();
if(next!= null && (!next.packageName.equals(processName)&& !processName.contains("antutu")) && next.packageName.contains("antutu")){
if(DEBUG_LOWMEM)Slog.v("xzj", "process dont start because for antutu: " + next.packageName + "/" + info.processName);
return null;
}
if((mProcessMap.get(processName) != null) && (("broadcast".equals(hostingType))||("content provider".equals(hostingType)))){
if(DEBUG_LOWMEM)Slog.v("xzj", "process dont start because for filter: " + info.uid + "/" + info.processName);
return null;
}
if((mServiceMap.get(processName) != null)&&("service".equals(hostingType))&&((info.flags & ApplicationInfo.FLAG_IS_GAME) !=0))
//for service start by system
{
if(DEBUG_LOWMEM)Slog.v("xzj", "service dont start auto because for filter: " + info.uid + "/" + info.processName);
return null;
}
if(((info.flags & ApplicationInfo.FLAG_SYSTEM) ==0)&&("broadcast".equals(hostingType)))
{
//从这里返回
if(DEBUG_LOWMEM)Slog.v("xzj", "third part process dont start for broadcast: " + info.uid + "/" + info.processName);
return null;
}
if(mGameMap.get(processName) != null)
{
killAllBackgroundProcesses();
if(DEBUG_LOWMEM)Slog.v("xzj", "----clean memory for start " + info.processName);
}
}
基本可以定位问题点, 进一步验证:
//获取属性值:
rk3128_box:/ $ getprop ro.mem_optimise.enable
true
判断非系统应用则返回处理.
if(((info.flags & ApplicationInfo.FLAG_SYSTEM) ==0)&&("broadcast".equals(hostingType)))
ro.mem_optimise.enable从属性名可以推断出这是为了优化低内存平台的用户体验, 减少自启应用以降低系统的内存占用率.
解决的方案:
- ro.mem_optimise.enable 设置为false
- 以上代码中增加白名单, 允许指定第三方应用自启
眠休不黑屏
设置休眠15秒后, 屏幕只是变暗而不关闭:
diff --git a/device/rockchip/common/tv/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml b/device/rockchip/common/tv/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
index 40021f719c..92bdfb40b9 100644
--- a/device/rockchip/common/tv/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
+++ b/device/rockchip/common/tv/overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
@@ -26,7 +26,7 @@
<bool name="def_device_provisioned">true</bool>
<!-- Keep screen on at all times by default -->
- <bool name="def_stay_on_while_plugged_in">true</bool>
+ <bool name="def_stay_on_while_plugged_in">false</bool>
<!-- Do not give up on DHCP -->
<integer name="def_max_dhcp_retries">0</integer>
相当代码可以参考看看
进入休眠前的几个函数:
PowerManagerService
|-- handleUserActivityTimeout
|-- updatePowerStateLocked
|-- updateWakefulnessLocked //不进黑屏是到这里后没有进入下一个函数
|-- goToSleepNoUpdateLocked //进入休眠
frameworks/base/services/core/java/com/android/server/power/PowerManagerService.java
mStayOnWhilePluggedInSetting = Settings.Global.getInt(resolver,
Settings.Global.STAY_ON_WHILE_PLUGGED_IN, BatteryManager.BATTERY_PLUGGED_AC);
/**
* Updates the value of mStayOn.
* Sets DIRTY_STAY_ON if a change occurred.
*/
private void updateStayOnLocked(int dirty) {
if ((dirty & (DIRTY_BATTERY_STATE | DIRTY_SETTINGS)) != 0) {
final boolean wasStayOn = mStayOn;
if (mStayOnWhilePluggedInSetting != 0
&& !isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked()) {
mStayOn = mBatteryManagerInternal.isPowered(mStayOnWhilePluggedInSetting);
} else {
mStayOn = false;
}
if (mStayOn != wasStayOn) {
mDirty |= DIRTY_STAY_ON;
}
}
}
/**
* Returns true if the device should go to sleep now.
* Also used when exiting a dream to determine whether we should go back
* to being fully awake or else go to sleep for good.
*/
private boolean isItBedTimeYetLocked() {
return mBootCompleted && !isBeingKeptAwakeLocked();
}
/**
* Returns true if the device is being kept awake by a wake lock, user activity
* or the stay on while powered setting. We also keep the phone awake when
* the proximity sensor returns a positive result so that the device does not
* lock while in a phone call. This function only controls whether the device
* will go to sleep or dream which is independent of whether it will be allowed
* to suspend.
*/
private boolean isBeingKeptAwakeLocked() {
return mStayOn
|| mProximityPositive
|| (mWakeLockSummary & WAKE_LOCK_STAY_AWAKE) != 0
|| (mUserActivitySummary & (USER_ACTIVITY_SCREEN_BRIGHT
| USER_ACTIVITY_SCREEN_DIM)) != 0
|| mScreenBrightnessBoostInProgress;
}
/**
* Updates the wakefulness of the device.
*
* This is the function that decides whether the device should start dreaming
* based on the current wake locks and user activity state. It may modify mDirty
* if the wakefulness changes.
*
* Returns true if the wakefulness changed and we need to restart power state calculation.
*/
private boolean updateWakefulnessLocked(int dirty) {
boolean changed = false;
if ((dirty & (DIRTY_WAKE_LOCKS | DIRTY_USER_ACTIVITY | DIRTY_BOOT_COMPLETED
| DIRTY_WAKEFULNESS | DIRTY_STAY_ON | DIRTY_PROXIMITY_POSITIVE
| DIRTY_DOCK_STATE)) != 0) {
if (mWakefulness == WAKEFULNESS_AWAKE && isItBedTimeYetLocked()) {
if (DEBUG_SPEW) {
Slog.d(TAG, "updateWakefulnessLocked: Bed time...");
}
final long time = SystemClock.uptimeMillis();
if (shouldNapAtBedTimeLocked()) {
changed = napNoUpdateLocked(time, Process.SYSTEM_UID);
} else {
changed = goToSleepNoUpdateLocked(time,
PowerManager.GO_TO_SLEEP_REASON_TIMEOUT, 0, Process.SYSTEM_UID);
}
}
}
return changed;
}
