android 6.0/7.1/9 默认打开 开发者选项

路径：

android6.0\packages\apps\Settings\src\com\android\settings\SettingsActivity.java

修改：将showDev 设置为true

        //        final boolean showDev = mDevelopmentPreferences.getBoolean(
////                DevelopmentSettings.PREF_SHOW,
////                android.os.Build.TYPE.equals("eng"));
				final boolean showDev =  true;

android 7.1

-//final boolean showDev = mDevelopmentPreferences.getBoolean(
        -//            DevelopmentSettings.PREF_SHOW, android.os.Build.TYPE.equals("eng"))
       - //        && !um.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES);
+final boolean showDev = true;

 

android 9

-//final boolean showDev = DevelopmentSettingsEnabler.isDevelopmentSettingsEnabled(this)
-//        && !Utils.isMonkeyRunning();
+final boolean showDev =  true;

 

参考：

https://blog.csdn.net/zuiaikg703/article/details/47344789