LeakCanary报的内存泄露

[android-1995]

LeakCanary报告

2021-10-10 09:47:06.510 6343-6343/com.aiwu.myapplication D/LeakCanary: ​
    ┬───
    │ GC Root: Local variable in native code
    │
    ├─ android.os.HandlerThread instance
    │    Leaking: NO (PathClassLoader↓ is not leaking)
    │    Thread name: 'LeakCanary-Heap-Dump'
    │    ↓ Thread.contextClassLoader
    ├─ dalvik.system.PathClassLoader instance
    │    Leaking: NO (StartupCacheManager↓ is not leaking and A ClassLoader is never leaking)
    │    ↓ ClassLoader.runtimeInternalObjects
    ├─ java.lang.Object[] array
    │    Leaking: NO (StartupCacheManager↓ is not leaking)
    │    ↓ Object[].[1131]
    ├─ com.rousetime.android_startup.manager.StartupCacheManager class
    │    Leaking: NO (a class is never leaking)
    │    ↓ static StartupCacheManager.instance$delegate
    │                                 ~~~~~~~~~~~~~~~~~
    ├─ kotlin.SynchronizedLazyImpl instance
    │    Leaking: UNKNOWN
    │    Retaining 78.3 kB in 1199 objects
    │    ↓ SynchronizedLazyImpl._value
    │                           ~~~~~~
    ├─ com.rousetime.android_startup.manager.StartupCacheManager instance
    │    Leaking: UNKNOWN
    │    Retaining 78.3 kB in 1198 objects
    │    ↓ StartupCacheManager.initializedConfig
    │                          ~~~~~~~~~~~~~~~~~
    ├─ com.rousetime.android_startup.model.StartupConfig instance
    │    Leaking: UNKNOWN
    │    Retaining 78.1 kB in 1193 objects
    │    ↓ StartupConfig.listener
    │                    ~~~~~~~~
    ├─ com.aiwu.myapplication.SplashActivity$task$1 instance
    │    Leaking: UNKNOWN
    │    Retaining 78.1 kB in 1192 objects
    │    Anonymous class implementing com.rousetime.android_startup.StartupListener
    │    this$0 instance of com.aiwu.myapplication.SplashActivity with mDestroyed = true
    │    ↓ SplashActivity$task$1.this$0
    │                            ~~~~~~
    ╰→ com.aiwu.myapplication.SplashActivity instance
    ​     Leaking: YES (ObjectWatcher was watching this because com.aiwu.myapplication.SplashActivity received
    ​     Activity#onDestroy() callback and Activity#mDestroyed is true)
    ​     Retaining 78.0 kB in 1191 objects
    ​     key = 2490bb45-30d7-4fcc-a5b8-0c6c25215341
    ​     watchDurationMillis = 11702
    ​     retainedDurationMillis = 6700
    ​     mApplication instance of android.app.Application
    ​     mBase instance of androidx.appcompat.view.ContextThemeWrapper

    METADATA

    Build.VERSION.SDK_INT: 30
    Build.MANUFACTURER: Google
    LeakCanary version: 2.7
    App process name: com.aiwu.myapplication
    Stats: LruCache[maxSize=3000,hits=2278,misses=59102,hitRate=3%]
    RandomAccess[bytes=2891587,reads=59102,travel=23161836688,range=17719770,size=23455318]
    Heap dump reason: user request
    Analysis duration: 9374 ms

测试代码

class SplashActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        task()
    }

    private fun task() {
        StartupManager.Builder()
            .addStartup(TestStartup())
            .setConfig(
                StartupConfig.Builder()
                    .setLoggerLevel(LoggerLevel.DEBUG)
                    .setListener(object : StartupListener {
                        override fun onCompleted(
                            totalMainThreadCostTime: Long,
                            costTimesModels: List<CostTimesModel>
                        ) {
                            goMainAct()
                        }
                    })
                    .build()
            )
            .build(this)
            .start()
            .await()
    }

    private fun goMainAct() {
        startActivity(Intent(this, MainActivity::class.java))
        finish()
    }

    class TestStartup : AndroidStartup<Boolean>() {
        override fun callCreateOnMainThread() = false

        override fun waitOnMainThread() = false

        override fun create(context: Context): Boolean {
            Thread.sleep(1000)
            return true
        }
    }
}

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }
}

[android-1995]

依赖

    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.7'
    implementation 'io.github.idisfkj:android-startup:1.0.7'

[idisfkj]

AndroidStartup手动初始化原则上规定是在Application中进行初始化。

建议再去看下README。

[android-1995]

好吧，我当成任务流程框架用了。谢谢