SettingsObserver.kt
/*
* Copyright (C) 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.test.espresso.device.common
import android.content.ContentResolver
import android.content.Context
import android.database.ContentObserver
import android.os.Handler
import android.provider.Settings.System
import java.util.concurrent.CountDownLatch
class SettingsObserver(
handler: Handler,
val context: Context,
val latch: CountDownLatch,
val settingToObserve: String
) : ContentObserver(handler) {
fun observe() {
val resolver: ContentResolver = context.getContentResolver()
resolver.registerContentObserver(System.getUriFor(settingToObserve), false, this)
}
fun stopObserver() {
val resolver: ContentResolver = context.getContentResolver()
resolver.unregisterContentObserver(this)
}
override fun onChange(selfChange: Boolean) {
latch.countDown()
}
}