Android 9.0调试日志

1.Android 6.0 以后三方Launcher不响应Home键

关键代码片段

./services/core/java/com/android/server/policy/PhoneWindowManager.java 
7970     boolean goHome() {
7971         if (!isUserSetupComplete()) {
7972             Slog.i(TAG, "Not going home because user setup is in progress.");
7973             return false;
7974         }
... ... ... ...
./services/core/java/com/android/server/policy/PhoneWindowManager.java 
1848     boolean isUserSetupComplete() {
1849         boolean isSetupComplete = Settings.Secure.getIntForUser(mContext.getContentResolver(),
1850                 Settings.Secure.USER_SETUP_COMPLETE, 0, UserHandle.USER_CURRENT) != 0;
1851         if (mHasFeatureLeanback) {
1852             isSetupComplete &= isTvUserSetupComplete();
1853         }
1854         return isSetupComplete;
1855     }

因此只需要更改数据库配置即可

settings put secure user_setup_complete 1
settings put secure tv_user_setup_complete 1

或代码执行

TvProvision/src/com/android/tv/provision/DefaultActivity.java
 32 public class DefaultActivity extends Activity {
 33 
 34     @Override
 35     protected void onCreate(Bundle icicle) {
 36         super.onCreate(icicle);
 37 
 38         // Add a persistent setting to allow other apps to know the device has been provisioned.
 39         if (!isRestrictedUser()) {
 40             Settings.Global.putInt(getContentResolver(), Settings.Global.DEVICE_PROVISIONED, 1);
 41         }
 42         Settings.Secure.putInt(getContentResolver(), Settings.Secure.USER_SETUP_COMPLETE, 1);
 43         Settings.Secure.putInt(getContentResolver(), Settings.Secure.TV_USER_SETUP_COMPLETE, 1);

2.Android Settings dump

dumpsys settings --proto

or

settings list system/secure/global

3.Android 修改音量键风格

commit c5ee8aee9732a0f7b246a9209b616170f7ab9515
Author: lei.xiao 
Date:   Sun Sep 29 18:07:07 2019 +0800

    Modify volume seekbar style to meet customer requirements
    
    Change-Id: I7739091f2bf568782f1fad054d22e2a1b2972785

diff --git a/packages/SystemUI/res/drawable/custom_volume_style.xml b/packages/SystemUI/res/drawable/custom_volume_style.xml
new file mode 100644
index 00000000000..ba39a027f8b
--- /dev/null
+++ b/packages/SystemUI/res/drawable/custom_volume_style.xml
@@ -0,0 +1,21 @@
+
+
+    
+        
+            
+            
+        
+    
+
+
+    
+        
+            
+                
+                
+            
+        
+    
+
diff --git a/packages/SystemUI/res/layout/volume_dialog_row.xml b/packages/SystemUI/res/layout/volume_dialog_row.xml
index 6128da8627a..6e350b50d0f 100644
--- a/packages/SystemUI/res/layout/volume_dialog_row.xml
+++ b/packages/SystemUI/res/layout/volume_dialog_row.xml
@@ -52,6 +52,9 @@
                 android:layout_height="match_parent"
                 android:layoutDirection="rtl"
                 android:layout_gravity="center"
+                android:progressDrawable="@drawable/custom_volume_style"
+                android:thumb="@null"
+                android:duplicateParentState="true"
                 android:rotation="90" />
         

效果图如下:


微信图片_20190929181226.jpg

4.系统应用预授权

修改etc/default-permissions 下配置xml即可。示例可参考

device/google/crosshatch/default-permissions.xml
./services/core/java/com/android/server/pm/permission/DefaultPermissionGrantPolicy.java
1309     private void grantDefaultPermissionExceptions(int userId) {
1310         mHandler.removeMessages(MSG_READ_DEFAULT_PERMISSION_EXCEPTIONS);
1311 
1312         synchronized (mLock) {
1313             // mGrantExceptions is null only before the first read and then
1314             // it serves as a cache of the default grants that should be
1315             // performed for every user. If there is an entry then the app
1316             // is on the system image and supports runtime permissions.
1317             if (mGrantExceptions == null) {
1318                 mGrantExceptions = readDefaultPermissionExceptionsLocked();
1319             }
1320         }
1321 
1322         Set permissions = null;
1323         final int exceptionCount = mGrantExceptions.size();
1324         for (int i = 0; i < exceptionCount; i++) {
1325             String packageName = mGrantExceptions.keyAt(i);
1326             PackageParser.Package pkg = getSystemPackage(packageName);
1327             List permissionGrants = mGrantExceptions.valueAt(i);
1328             final int permissionGrantCount = permissionGrants.size();
1329             for (int j = 0; j < permissionGrantCount; j++) {
1330                 DefaultPermissionGrant permissionGrant = permissionGrants.get(j);
1331                 if (permissions == null) {
1332                     permissions = new ArraySet<>();
1333                 } else {
1334                     permissions.clear();
1335                 }
1336                 permissions.add(permissionGrant.name);
1337                 grantRuntimePermissions(pkg, permissions,
1338                         permissionGrant.fixed, userId);
1339             }
1340         }
1341     }

5 build 系统添加EXCLUDE_PACKAGES

diff --git a/build/make/core/main.mk b/build/make/core/main.mk
index 1946edb78f..b26388a6a0 100644
--- a/build/make/core/main.mk
+++ b/build/make/core/main.mk
@@ -901,6 +901,7 @@ ifdef BOARD_VNDK_VERSION
   product_MODULES += vndk_package
 endif
   # Filter out the overridden packages before doing expansion
+  product_MODULES := $(filter-out $(EXCLUDE_PACKAGES),$(product_MODULES))
   product_MODULES := $(filter-out $(foreach p, $(product_MODULES), \
       $(PACKAGES.$(p).OVERRIDES)), $(product_MODULES))
   # Filter out executables as well

一个使用demo:

--- a/device/amlogic/franklin/franklin.mk
+++ b/device/amlogic/franklin/franklin.mk
@@ -529,3 +529,4 @@ ifeq ($(AB_OTA_UPDATER),true)
 $(warning $(shell ($(AUTO_PATCH_AB) $(PRODUCT_DIR))))
 endif
 endif
+EXCLUDE_PACKAGES := DeskClock

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