/
AndroidSupportFragmentDestroyWatcher.kt
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/
AndroidSupportFragmentDestroyWatcher.kt
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/*
* Copyright (C) 2019 Square, Inc.
*
* 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 leakcanary.internal
import android.app.Activity
import android.support.v4.app.Fragment
import android.support.v4.app.FragmentActivity
import android.support.v4.app.FragmentManager
import leakcanary.AppWatcher.Config
import leakcanary.ObjectWatcher
internal class AndroidSupportFragmentDestroyWatcher(
private val objectWatcher: ObjectWatcher,
private val configProvider: () -> Config
) : (Activity) -> Unit {
private val fragmentLifecycleCallbacks = object : FragmentManager.FragmentLifecycleCallbacks() {
override fun onFragmentViewDestroyed(
fm: FragmentManager,
fragment: Fragment
) {
val view = fragment.view
if (view != null && configProvider().watchFragmentViews) {
objectWatcher.watch(view)
}
}
override fun onFragmentDestroyed(
fm: FragmentManager,
fragment: Fragment
) {
if (configProvider().watchFragments) {
objectWatcher.watch(fragment)
}
}
}
override fun invoke(activity: Activity) {
if (activity is FragmentActivity) {
val supportFragmentManager = activity.supportFragmentManager
supportFragmentManager.registerFragmentLifecycleCallbacks(fragmentLifecycleCallbacks, true)
}
}
}