默认打开开发者模式默认打开USB调试
最后更新于:2022-04-01 14:48:22
原文地址:[http://blog.csdn.net/ouyang_peng/article/details/49815865](http://blog.csdn.net/ouyang_peng/article/details/49815865)
今天有个用户对【设置】有个特殊的要求,即:
1、开机的时候默认显示【开发者选项】并打开【USB调试】开关 (【Developer options】-->【USB debugging】)
2、开机的时候默认打开【安全】-->【未知来源】的开关 (【Security】--->【Unknown sources】)
1、首先解决【设置】界面默认显示【开发者选项】的问题
查看源代码:packages/apps/Settings/src/com/android/settings/SettingsActivity.java
在updateTilesList(List<DashboardCategory> target)方法中,可以找到【开发者选项】相关的代码:
~~~
else if (id == R.id.development_settings) {
Log.d(LOG_TAG, "=================oyp K="+showDev);
if (!showDev || um.hasUserRestriction(
UserManager.DISALLOW_DEBUGGING_FEATURES)) {
removeTile = true;
}
}
~~~
其中showDev变量定义在该方法最开始处
~~~
final boolean showDev = mDevelopmentPreferences.getBoolean(
DevelopmentSettings.PREF_SHOW,
android.os.Build.TYPE.equals("eng"));
~~~
因此要想特定客户直接显示【开发者选项】,则将showDev的值改变即可,代码如下:
~~~
//added by ouyang 2015-11-10 set DevelopmentSettings.PREF_SHOW=true if model is J5
if (android.os.SystemProperties.isJ5Version()) {
SharedPreferences.Editor editor=mDevelopmentPreferences.edit();
editor.putBoolean(DevelopmentSettings.PREF_SHOW, true);
editor.commit();
Log.d(LOG_TAG, "=================oyp set DevelopmentSettings.PREF_SHOW=true if model is J5 ");
}
//added by ouyang 2015-11-10 end
final boolean showDev = mDevelopmentPreferences.getBoolean(
DevelopmentSettings.PREF_SHOW,
android.os.Build.TYPE.equals("eng"));
~~~
即在初始化showDev变量之前,将DevelopmentSettings.PREF_SHOW的值设置为true,那么showDev也会是true。这样【开发者选项】就会默认打开。那个判断是J5客户的方法在/frameworks/base/core/java/android/os/SystemProperties.java中定义
~~~
public static boolean isJ5Version(){
return SystemProperties.get("ro.product.model").contains("J5");
}
~~~
![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-03-10_56e0e2a228669.jpg)
2、解决【开发者选项】-->【USB调试】开关
首先查看packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java
在updateAllOptions()方法中,有关于【USB调试】的逻辑处理。
~~~
/// M: CR ALPS00244115. Lock and unlock screen, the "USB debugging" is unchecked.
boolean isChecked = (mAdbDialog != null && mAdbDialog.isShowing()) ? true :
(Settings.Global.getInt(cr, Settings.Global.ADB_ENABLED, 0) != 0);
updateSwitchPreference(mEnableAdb, isChecked);
/// M: update usb preference again
mExt.customUSBPreference(mEnableAdb);
~~~
~~~
void updateSwitchPreference(SwitchPreference switchPreference, boolean value) {
switchPreference.setChecked(value);
mHaveDebugSettings |= value;
}
~~~
其中mEnableAdb即【USB调试】开关控件。一开始我直接强制的把isChecked变量设置为true,如下代码所示
~~~
/// M: CR ALPS00244115. Lock and unlock screen, the "USB debugging" is unchecked.
boolean isChecked = (mAdbDialog != null && mAdbDialog.isShowing()) ? true :
(Settings.Global.getInt(cr, Settings.Global.ADB_ENABLED, 0) != 0);
- //added by ouyang 2015-11-10 set mEnableAdb=true if model is J5
- if (android.os.SystemProperties.isJ5Version()) {
- isChecked=true;
- }
- //added by ouyang 2015-11-10 end
updateSwitchPreference(mEnableAdb, isChecked);
/// M: update usb preference again
mExt.customUSBPreference(mEnableAdb);
~~~
但是这样的话,直接刷机后开机的话还是不能直接连接USB调试,还要重新关闭该开关再打开该开关才能进行USB调试,因此该方案被放弃。
因为是否真正打开【USB调试】功能,是看Settings.Global.ADB_ENABLED这个属性的值是0还是1。因此真正的方法是在一个接受开机广播的广播接收者中将Settings.Global.ADB_ENABLED设置为1。
在下面和【未知来源】一起修改,在第4步骤中解决。
3、解决【安全】-->【未知来源】的开关 默认打开的问题
首先查看packages/apps/Settings/src/com/android/settings/SecuritySettings.java文件,在createPreferenceHierarchy()方法中找到【未知来源】的控件,403行附近
~~~
mToggleAppInstallation = (SwitchPreference) findPreference(
KEY_TOGGLE_INSTALL_APPLICATIONS);
mToggleAppInstallation.setChecked(isNonMarketAppsAllowed());
~~~
其中isNonMarketAppsAllowed()方法代码如下
~~~
private boolean isNonMarketAppsAllowed() {
return Settings.Global.getInt(getContentResolver(),
Settings.Global.INSTALL_NON_MARKET_APPS, 0) > 0;
}
~~~
setNonMarketAppsAllowed(boolean enabled)方法代码如下
~~~
private void setNonMarketAppsAllowed(boolean enabled) {
final UserManager um = (UserManager) getActivity().getSystemService(Context.USER_SERVICE);
if (um.hasUserRestriction(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES)) {
return;
}
// Change the system setting
Settings.Global.putInt(getContentResolver(), Settings.Global.INSTALL_NON_MARKET_APPS,
enabled ? 1 : 0);
}
~~~
一开始我在判断isNonMarketAppsAllowed()方法之前,先调用setNonMarketAppsAllowed()方法,这样一进入这个界面的话,【未知来源】选项是被勾选的。
~~~
mToggleAppInstallation = (SwitchPreference) findPreference(
KEY_TOGGLE_INSTALL_APPLICATIONS);
-
- //added by ouyang 2015-11-10 setChecked(true) if the model is J5
- if (android.os.SystemProperties.isJ5Version()) {
- setNonMarketAppsAllowed(true);
- }
mToggleAppInstallation.setChecked(isNonMarketAppsAllowed());
- //added by ouyang 2015-11-10 end
~~~
但是,刷完机直接安装一个第三方的apk的话,还是会弹出窗口要我设置【未知来源】选项,如下所示,因此该方案被放弃。
![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-03-10_56e0e2a23e910.jpg)
点击【设置】按钮进入到界面是,【未知来源】按钮默认勾选了,这个时候退出去,继续安装apk的话就可以安装了,如下所示:
![](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-03-10_56e0e2a2524ec.jpg)
因为这个添加的代码是在SecuritySettings的createPreferenceHierarchy()方法中,也就是说要进入到该Activity才生效。这样明显没达到目的。
因此要和设置【USB调试】一样,在一个接收开机广播的广播接收者中将Settings.Global.INSTALL_NON_MARKET_APPS设置为1。
4、找Settings里面定义的一个接收开机广播的广播接收者,在AndroidManifest.xml中找到一个,当然你也可以自己定义一个这样的广播接收者。
~~~
<!-- Restore Rotation Receiver -->
<receiver android:name="com.mediatek.settings.RestoreRotationReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.ACTION_BOOT_IPO" />
</intent-filter>
</receiver>
~~~
因此在packages/apps/Settings/src/com/mediatek/settings/RestoreRotationReceiver.java的onReceive(Context context, Intent intent)方法中加入以下代码:
~~~
//added by ouyang 2015-11-13
if (android.os.SystemProperties.isJ5Version()) {
// 开机启动时,默认设置 [未知来源] 勾选
Settings.Global.putInt(context.getContentResolver(), Settings.Global.INSTALL_NON_MARKET_APPS,1);
// 开机启动时,默认设置 [USB调试] 勾选
Settings.Global.putInt(context.getContentResolver(),Settings.Global.ADB_ENABLED, 1);
}
//added by ouyang 2015-11-13 end
~~~
而一开始添加的代码可以注释掉了。通过git diff可以看出来
~~~
diff --git a/packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java b/packages/apps/Settings/src/com/android/settings/Devel
index 0a987df..503270a 100755
--- a/packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java
+++ b/packages/apps/Settings/src/com/android/settings/DevelopmentSettings.java
@@ -508,15 +508,9 @@ public class DevelopmentSettings extends SettingsPreferenceFragment
final Context context = getActivity();
final ContentResolver cr = context.getContentResolver();
mHaveDebugSettings = false;
-
/// M: CR ALPS00244115. Lock and unlock screen, the "USB debugging" is unchecked.
boolean isChecked = (mAdbDialog != null && mAdbDialog.isShowing()) ? true :
(Settings.Global.getInt(cr, Settings.Global.ADB_ENABLED, 0) != 0);
- //added by ouyang 2015-11-10 set mEnableAdb=true if model is J5
- if (android.os.SystemProperties.isJ5Version()) {
- isChecked=true;
- }
- //added by ouyang 2015-11-10 end
updateSwitchPreference(mEnableAdb, isChecked);
/// M: update usb preference again
mExt.customUSBPreference(mEnableAdb);
~~~
~~~
diff --git a/packages/apps/Settings/src/com/android/settings/SecuritySettings.java b/packages/apps/Settings/src/com/android/settings/Security
index 4de173a..392e6ee 100755
--- a/packages/apps/Settings/src/com/android/settings/SecuritySettings.java
+++ b/packages/apps/Settings/src/com/android/settings/SecuritySettings.java
@@ -402,14 +402,7 @@ public class SecuritySettings extends SettingsPreferenceFragment
root.findPreference(KEY_DEVICE_ADMIN_CATEGORY);
mToggleAppInstallation = (SwitchPreference) findPreference(
KEY_TOGGLE_INSTALL_APPLICATIONS);
-
- //added by ouyang 2015-11-10 setChecked(true) if the model is J5
- if (android.os.SystemProperties.isJ5Version()) {
- setNonMarketAppsAllowed(true);
- }
mToggleAppInstallation.setChecked(isNonMarketAppsAllowed());
- //added by ouyang 2015-11-10 end
-
// Side loading of apps.
// Disable for restricted profiles. For others, check if policy disallows it.
mToggleAppInstallation.setEnabled(!um.getUserInfo(UserHandle.myUserId()).isRestricted());
~~~
这样改为后,编译,刷机后,插上USB数据线就可以开始进行adb调试了,而且可以直接安装未知来源的apk了。