android.media.tv,SecurityException: Selection not allowed for content://android.media.tv/channel

I cannot reproduce your issue, so I have decided to post the relevant code - maybe it will help you somehow. So, the app starts fine and no exception is thrown.

app/build.gradle

plugins {

id 'com.android.application'

id 'kotlin-android'

}

android {

compileSdkVersion 30

buildToolsVersion "30.0.2"

defaultConfig {

applicationId "com.example.sampletv"

minSdkVersion 21

targetSdkVersion 30

versionCode 1

versionName "1.0"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

}

}

}

dependencies {

implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"

implementation 'com.android.support:leanback-v17:28.0.0'

implementation 'com.android.support:appcompat-v7:28.0.0'

implementation 'com.github.bumptech.glide:glide:3.8.0'

implementation 'androidx.tvprovider:tvprovider:1.0.0'

}

AndroidManifest.xml

package="com.example.sampletv">

android:name="android.hardware.touchscreen"

android:required="false" />

android:name="android.software.leanback"

android:required="true" />

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:supportsRtl="true"

android:theme="@style/Theme.Sampletv">

android:name=".MainActivity"

android:banner="@drawable/app_icon_your_company"

android:icon="@drawable/app_icon_your_company"

android:label="@string/app_name"

android:logo="@drawable/app_icon_your_company"

android:screenOrientation="landscape">

MainActivity.kt

package com.example.sampletv

import android.app.Activity

import android.net.Uri

import android.os.Bundle

import androidx.tvprovider.media.tv.Channel

import androidx.tvprovider.media.tv.TvContractCompat

class MainActivity : Activity() {

override fun onCreate(savedInstanceState: Bundle?) {

super.onCreate(savedInstanceState)

val uri: Uri = TvContractCompat.Channels.CONTENT_URI

contentResolver.query(uri, null, null, null, null)?.let { cursor->

if(cursor.count > 0) {

cursor.moveToFirst()

do {

val channel = Channel.fromCursor(cursor)

} while (cursor.moveToNext() && cursor.isLast.not())

}

}

}

}