Updating TV-casting-Android app read me and tv-app linux (#28028)

* Update tv casting app and tv app readmes * Update examples/tv-app/linux/README.md Co-authored-by: chrisdecenzo <[email protected]> --------- Co-authored-by: chrisdecenzo <[email protected]>
project-chip · Jan 19, 2024 · 1223682 · 1223682
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diff --git a/examples/tv-app/linux/README.md b/examples/tv-app/linux/README.md
@@ -55,6 +55,21 @@ Try the "commission-onnetwork <pincode> <disc> <IP> <port>" command
     $ controller commission-onnetwork 34567890 2976 192.168.65.3 5540 -or-
     $ controller commission-onnetwork 34567890 2976 fe80::50:ff:fe00:1 5540
 
+When the tv-app receives a UDC request from a commissionable node (like a
+tv-casting-app), it will print out
+
+```
+CHIP:SVR: UserDirectedCommissioningServer::OnMessageReceived
+CHIP:SVR: UDC instance=F879911BF17129AA
+CHIP:SVR: OnCommissionableNodeFound instance: name=F879911BF17129AA old_state=1 new_state=3
+CHIP:CTL: ------PROMPT USER: Test TV casting app is requesting permission to cast to this TV, approve? [0x0000_FFF1,0x0000_8001,F879911BF17129AA,01005DD9BB0990AF18F19C35C30C670532BC]
+CHIP:CTL: ------Via Shell Enter: controller ux ok|cancel
+```
+
+Begin commissioning it by running
+
+    $ controller ux ok
+
 -   User Directed Commissioning (UDC)
 
 Print out the cached list of UDC sessions

diff --git a/examples/tv-casting-app/android/README.md b/examples/tv-casting-app/android/README.md
@@ -20,10 +20,17 @@ the TV.
 
 ## Requirements for building
 
-You need Android SDK 21 & NDK 23.2.8568313 downloaded to your machine. Set the
-`$ANDROID_HOME` environment variable to where the SDK is downloaded and the
-`$ANDROID_NDK_HOME` environment variable to point to where the NDK package is
-downloaded.
+Refer to
+[this file](../../../docs/guides/android_building.md#requirements-for-building)
+to download the recommended version for the Android SDK and NDK for your
+machine. Set the `$ANDROID_HOME` environment variable to where the SDK is
+downloaded and the `$ANDROID_NDK_HOME` environment variable to point to where
+the NDK package is downloaded.
+
+```
+export ANDROID_HOME=~/Library/Android/sdk
+export ANDROID_NDK_HOME=~/Library/Android/sdk/ndk/{NDK_VERSION_NUMBER}
+```
 
 ### ABIs and TARGET_CPU