android tv 模拟器默认桌面修改 Alternate Launcher开机自动启动app

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
                <category android:name="android.intent.category.LAUNCHER_APP" />
                <category android:name="android.intent.category.LAUNCHER" />
                <category android:name="android.intent.category.HOME" />
                <category android:name="android.intent.category.DEFAULT" />
                <category android:name="android.intent.category.MONKEY" />
            </intent-filter>

Name: Android_TV_1080p_API_26
CPU/ABI: Android TV Intel Atom (x86)
Path: C:\Users\root\.android\avd\Android_TV_1080p_API_26.avd
Target: android-tv [Android TV] (API level 26)

C:\Users\root\AppData\Local\Android\Sdk\emulator>emulator -avd Android_TV_1080p_API_26 -writable-system

C:\Users\root>adb shell
generic_x86:/ $ su
generic_x86:/ # pm disable-user --user 0 com.google.android.tvlauncher
Package com.google.android.tvlauncher new state: disabled-user

Connect your Shield TV via USB to mini USB with PC, For the 2017 Shield Model please look below for connection info.
Leave the Shield plugged in and turned on as the way u usually use it connected to tv open command prompt (Minimal ADB and Fastboot ) on PC and type adb devices the PC will try to connect with Shield TV via USB. A message will pop up on the tv requesting permission for that device. Confirm that message with the controller or other device you use [mouse](http://i.viglink.com/?key=d2e43d31777d6249cc7d4a64dada8bca&insertId=68ffc0fd4e078f69&type=CD&exp=60%3ACI1C55A%3A5&libId=k4ejna3j01000n4o000DA66a8smwytd8p&loc=https%3A%2F%2Fforum.xda-developers.com%2Fshield-tv%2Fthemes-apps%2Falternate-launcher-root-marshmallow-t3359076&v=1&iid=68ffc0fd4e078f69&opt=true&out=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3Dmouse&title=Alternate%20Launcher%20(No%20Root)%20on%20Marshmallow%2C%E2%80%A6%20%7C%20nVidia%20Shield%20Android%20TV&txt=%3Cspan%3Emouse%3C%2Fspan%3E), remote etc.

Type in the command prompt 

adb shell
pm hide com.google.android.leanbacklauncher

To undo this 
adb shell
pm unhide com.google.android.leanbacklauncher

This will make the new launcher the default as it hides the leanback 
(Commands are different for the Nougat build see Update below)

Also If this is needed because you cannot get into settings on your device afterwards I have attached a copy of the shields setting apk file that I got off the nvidia site just install it as you would any other apk and all is fine access all settings etc.

This should work fine with any launcher that is setup as a Home Launcher please make sure you have a launcher that works and is what u need/want and that it is indeed set up and set as Home launcher.

**UPDATE** : For Shields running Nougat build
This is for Nougat NON Rooted shields, This also works on the 2015 model.

For Nvidia Shield 2017 Model Please follow the updated instructions After you have set up minimal adb and fast boot on PC.

First get a Type-A to Type-A USB cable or an [adapter](http://i.viglink.com/?key=d2e43d31777d6249cc7d4a64dada8bca&insertId=b074541887ac4ffb&type=CD&exp=60%3ACI1C55A%3A5&libId=k4ejna3j01000n4o000DA66a8smwytd8p&loc=https%3A%2F%2Fforum.xda-developers.com%2Fshield-tv%2Fthemes-apps%2Falternate-launcher-root-marshmallow-t3359076&v=1&iid=b074541887ac4ffb&opt=true&out=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3Dadapter&title=Alternate%20Launcher%20(No%20Root)%20on%20Marshmallow%2C%E2%80%A6%20%7C%20nVidia%20Shield%20Android%20TV&txt=%3Cspan%3Eadapter%3C%2Fspan%3E) that makes micro usb to Type-A
Use the Usb port furthest away from the Hdmi Port On The Shield TV
Select Usb device mode In Settings
Select Settings--Storage and Reset -- Using Usb (for Mtp)
Select Settings--About--Build-- Press Build 8 times to enable Developer mode then
Select Settings--Developer Options--Usb debugging (For adb)

Then 

Type in the command prompt:
adb shell
pm uninstall -k --user 0 com.google.android.leanbacklauncher

This should work fine with any launcher that is setup as a Home Launcher please make sure you have a launcher that works and is what u need/want and that it is indeed set up and set as Home launcher.

**UPDATE**: OREO Here are the new commands for the Oreo update 
Type in the command prompt:

adb shell
pm uninstall -k --user 0 com.google.android.leanbacklauncher
and
pm uninstall -k --user 0 com.google.android.tvlauncher

This will uninstall the Default launcher on non-rooted shields please make sure you have a functional launcher, set as Home launcher before doing this.

**UPDATE:** Pie (8-3-2019) To enable adb debugging on Pie go to Settings -- device preferences -- about then scroll down to build select and click it until developer mode is enabled.
To Disable the New Pie Launcher use this command

adb shell 
pm disable-user --user 0 com.google.android.tvlauncher

C:\Users\root>adb shell
generic_x86:/ $ su
generic_x86:/ # pm enable --user 0 com.google.android.tvlauncher
Package com.google.android.tvlauncher new state: enabled