卸载系统应用
adb shell pm uninstall -k –user 0 PACKAGE
frameworks/base/cmds/pm
Android.mk
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := $(call all-subdir-java-files)
LOCAL_MODULE := pm
include $(BUILD_JAVA_LIBRARY)
include $(CLEAR_VARS)
ALL_PREBUILT += $(TARGET_OUT)/bin/pm
$(TARGET_OUT)/bin/pm : $(LOCAL_PATH)/pm | $(ACP)
$(transform-prebuilt-to-target)
pm
system/bin/pm
# Script to start "pm" on the device, which has a very rudimentary
# shell.
#
base=/system
export CLASSPATH=$base/framework/pm.jar
exec app_process $base/bin com.android.commands.pm.Pm "$@"
Pm.java
public final class Pm {
private static final String TAG = "Pm";
public static void main(String[] args) {
int exitCode = 1;
try {
exitCode = new Pm().run(args);
} catch (Exception e) {
Log.e(TAG, "Error", e);
System.err.println("Error: " + e);
if (e instanceof RemoteException) {
System.err.println(PM_NOT_RUNNING_ERR);
}
}
System.exit(exitCode);
}
}
PMS.java
private boolean deletePackageLIF(String packageName, UserHandle user,
boolean deleteCodeAndResources, int[] allUserHandles, int flags,
PackageRemovedInfo outInfo, boolean writeSettings,
PackageParser.Package replacingPackage) {
-----------------------------------------------------------------
// 卸载单个用户的系统应用
if (((!isSystemApp(ps) || (flags&PackageManager.DELETE_SYSTEM_APP) != 0) && user != null
&& user.getIdentifier() != UserHandle.USER_ALL)) {
// The caller is asking that the package only be deleted for a single
// user. To do this, we just mark its uninstalled state and delete
// its data. If this is a system app, we only allow this to happen if
// they have set the special DELETE_SYSTEM_APP which requests different
// semantics than normal for uninstalling system apps.
markPackageUninstalledForUserLPw(ps, user);
if (!isSystemApp(ps)) {
----------------------------------------------------------
} else {
// This is a system app, so we assume that the
// other users still have this package installed, so all
// we need to do is clear this user's data and save that
// it is uninstalled.
if (DEBUG_REMOVE) Slog.d(TAG, "Deleting system app");
if (!clearPackageStateForUserLIF(ps, user.getIdentifier(), outInfo)) {
return false;
}
scheduleWritePackageRestrictionsLocked(user);
return true;
}
}
----------------------------------------------------------------------
}
pm uninstall
系统应用扫描
PMS.java
private void scanDirLI(File dir, final int parseFlags, int scanFlags, long currentTime) {
final File[] files = dir.listFiles();
if (ArrayUtils.isEmpty(files)) {
Log.d(TAG, "No files in app dir " + dir);
return;
}
if (DEBUG_PACKAGE_SCANNING) {
Log.d(TAG, "Scanning app dir " + dir + " scanFlags=" + scanFlags
+ " flags=0x" + Integer.toHexString(parseFlags));
}
Log.d(TAG, "start scanDirLI:"+dir);
for (File file : files) {
// add by LXG
if (file.getName() != null && file.getName().startsWith("APKNAME")) {
Slog.d("LXG", "NO: " + file.getName());
continue;
}
}
}
