Android(安卓)USB debugging 功能失效
1. 修改按Builder number 的次數成為開發者:
packages/app/setings/DeviceInfoSettings.java
static final int TAPS_TO_BE_A_DEVELOPER = 7;
DevelopmentSettings.PREF_SHOW = true;
2. packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java
mEnableAdb = "USB debugging" check box
"Allow development settings?"
mAdbDialog = "Allow USB debugging?" dialog box
mAdbKeysDialog = "Revoke access to USB debugging from all computers you\'ve previously authorized?"
updateVerifyAppsOverUsbOptions()
private void updateVerifyAppsOverUsbOptions() {
updateCheckBox(mVerifyAppsOverUsb, Settings.Global.getInt(getActivity().getContentResolver(),
Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) != 0);
mVerifyAppsOverUsb.setEnabled(enableVerifierSetting());
}
mVerifyAppsOverUsb
mVerifyAppsOverUsb = findAndInitCheckboxPref(VERIFY_APPS_OVER_USB_KEY);
"clear_adb_keys" 不見了
mClearAdbKeys = findPreference(CLEAR_ADB_KEYS);
if (!SystemProperties.getBoolean("ro.adb.secure", false)) {
if (debugDebuggingCategory != null) {
debugDebuggingCategory.removePreference(mClearAdbKeys);
}
}
The ADB host authentication functionality is enabled by default when the ro.adb.secure
system property is set to 1, and there is no way to disable it via the system settings interface.
/default.prop
doesn't set ro.adb.secure
current default.prop:
ro.secure=1
ro.allow.mock.location=0
ro.debuggable=1
persist.sys.usb.config=adb
but it should be something like this:
ro.secure=1
ro.allow.mock.location=0
ro.debuggable=0
persist.sys.usb.config=mtp
ro.adb.secure=1
How to set ro.adb.secure=1 ?
PRODUCT_DEFAULT_PROPERTY_OVERRIDES := \
$(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_DEFAULT_PROPERTY_OVERRIDES))
------------------------
Solution:
1. 修改 ./build/core/main.mk
ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=1
+ ADDITIONAL_DEFAULT_PROPERTIES += ro.adb.secure=1
2. 修改 ./device/asus/flo/device.mk
+ PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+ persist.sys.usb.config=mtp
重build BSP, 觀察 root/default.prop 內容:
root$ cat default.prop
#
# ADDITIONAL_DEFAULT_PROPERTIES
#
ro.secure=1
ro.adb.secure=1
ro.allow.mock.location=0
ro.debuggable=1
persist.sys.usb.config=mtp,adb
燒到Nexus 平版, Debug 可以認到了
更多相关文章
- 2013.07.22——— android 修改hosts
- 修改不启动Launcher导致开机广播无法发出的bug
- Android(安卓)判断是否能真正上网
- 修改文件夹权限
- android SDK编译版本修改
- Android(安卓)Studio中断开SVN连接
- Android(安卓)模拟器方向键和键盘方向键不能用
- Android版本和API Level , ADT对应关系
- Android: ListView动态更新数据