intent 跳转activity的Fragment

在mainfest.xml中配置

android:sharedUserId="android.uid.system"

使此app与系统进程共享

需要 系统 相同的签名，但国产改过的系统用户并不一定默认的system

自己的不同app之间互相跳转用相同签名。

这里有签名的例子

https://blog.csdn.net/qq_29389373/article/details/87168615

跳转的例子

https://www.cxymm.net/article/The_king_of_Asia/104036820

分析的例子

https://www.cxyzjd.com/article/long375577908/64440186

https://blog.csdn.net/hfreeman2008/article/details/52778992

Intent intent=new Intent("/");
ComponentName cn=new ComponentName("com.android.settings", "com.android.settings.profile.ProfileSettings");
//ComponentName cn=new ComponentName("com.android.settings", ".profile.ProfileSettings");
intent.setComponent(cn);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivityForResult(intent, 1);

public void showSettings(@NonNull String activityName) throws ActivityNotFoundException {
    Intent intent = new Intent();
    intent.setClassName("com.android.settings", "com.android.settings.Settings$" + activityName);
    getActivity().startActivity(intent);
}

分析过程

使用ADB命令查看当前手机页面 或者 Hierarchy Viewer工具

adb shell dumpsys activity top

小米系统的锁屏和密码设置界面

Intent intent = new Intent();
intent.setAction(Intent.ACTION_MAIN);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra(PreferenceActivity.EXTRA_SHOW_FRAGMENT,"com.android.settings.MiuiSecuritySettings");//open fragment
intent.putExtra(PreferenceActivity.EXTRA_NO_HEADERS,true);
intent.setComponent(new ComponentName("com.android.settings", "com.android.settings.SubSettings")); //fragment of Activity
getApplicationContext().startActivity(intent);

adb shell启动之intent

adb shell am start -n com.android.settings/com.android.settings.SubSettings -e :android:show_fragment com.android.settings.accounts.AccountDashboardFragment

adb shell am start -n com.android.settings/com.android.settings.SubSettings -e :android:show_fragment com.android.settings.users.UserSettings

adb shell am start -n com.android.settings/com.android.settings.SubSettings -e :android:show_fragment com.android.settings.DeviceInfoSettings

am start -n com.android.settings/com.android.settings.SubSettings -e :settings:show_fragment com.android.settings.applications.RunningServices