由于内存不足，Android应用程序没有响应

我正在开发一个android应用程序，现在我发现我的应用程序只有在API为22或更高的设备上才能正常工作。在API小于22的所有设备（虚拟）中，它几乎在启动后立即崩溃（无响应）。 我想这是因为记忆不足

如果我看一下“内存”图上的Android监视器选项卡（在Android Studio中），我可以看到 ，及

看起来android有足够的内存，但就是没有时间分配

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如何在我的代码中找到它发生的确切位置

日志：

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如何在我的代码中找到它发生的确切位置？-调试

经过深入的调试，我想我已经找到了问题所在。

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问题是我使用了自定义ImageView，占用了太多内存，因此我将尝试改进我的自定义ImageView。

如何在代码中找到它发生的确切位置？-调试

经过深入的调试，我想我已经找到了问题所在。

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问题是我使用了自定义ImageView，占用了太多内存，因此我将尝试改进自定义ImageView。

有一个名为LeakCanary的库。从未使用过它，但看到它在周围被提及。我们说的是真正的设备吗？不要忘记，较旧的系统通常与较少的内存相关，因此很难找出原因。在模拟器中检查它。创建AVD时，您可以选择为其提供多少内存。加载API 16的映像或4 GB或更多GB的映像，您将看到它是否仍然发生。这很可能与内存有关。只需尝试在api级别较低的设备上调试应用程序。此外，日志中还应该有导致应用程序崩溃的异常的堆栈跟踪。它应该能告诉你到底是什么问题。有一个图书馆叫LeakCanary。从未使用过它，但看到它在周围被提及。我们说的是真正的设备吗？不要忘记，较旧的系统通常与较少的内存相关，因此很难找出原因。在模拟器中检查它。创建AVD时，您可以选择为其提供多少内存。加载API 16的映像或4 GB或更多GB的映像，您将看到它是否仍然发生。这很可能与内存有关。只需尝试在api级别较低的设备上调试应用程序。此外，日志中还应该有导致应用程序崩溃的异常的堆栈跟踪。它应该告诉你到底是什么问题。

E/eglCodecCommon: writeFully: failed: Bad address

I/ActivityManager: Killing 1600:com.android.onetimeinitializer/u0a10 (adj 15): empty #17

W/libprocessgroup: failed to open /acct/uid_10010/pid_1600/cgroup.procs: No such file or directory

W/ActivityManager: Launch timeout has expired, giving up wake lock!

I/InputDispatcher: Application is not responding: Window{32b75f14 u0 .MainActivity}.  It has been 5006.9ms since event, 5006.7ms since wait started.  Reason: Waiting to send non-key event because the touched window has not finished processing certain input events that were delivered to it over 500.0ms ago.  Wait queue length: 11.  Wait queue head age: 5549.6ms.

I/WindowManager: Input event dispatching timed out sending to .MainActivity.  Reason: Waiting to send non-key event because the touched window has not finished processing certain input events that were delivered to it over 500.0ms ago.  Wait queue length: 11.  Wait queue head age: 5549.6ms.

I/Process: Sending signal. PID: 1927 SIG: 3

I/art:Thread[5,tid=1934,WaitingInMainSignalCatcherLoop,Thread*=0xef70d400,peer=0x12c00080,"Signal Catcher"]: reacting to signal 3

I/art: Wrote stack traces to '/data/anr/traces.txt'

I/Process: Sending signal. PID: 764 SIG: 3
I/art: Thread[5,tid=771,WaitingInMainSignalCatcherLoop,Thread*=0xef70d400,peer=0x12c02080,"Signal Catcher"]: reacting to signal 3

E/Sensors: Select fail, disconnect all clients (errno=4)

I/art: Wrote stack traces to '/data/anr/traces.txt'

I/Process: Sending signal. PID: 1081 SIG: 3
10-15 14:59:59.410 1081-1089/com.android.phone I/art: Thread[5,tid=1089,WaitingInMainSignalCatcherLoop,Thread*=0xef70d400,peer=0x12c00080,"Signal Catcher"]: reacting to signal 3

I/art: Wrote stack traces to '/data/anr/traces.txt'
10-15 14:59:59.477 764-785/system_process I/Process: Sending signal. PID: 1050 SIG: 3

I/art: Thread[5,tid=1057,WaitingInMainSignalCatcherLoop,Thread*=0xef70d400,peer=0x12c00080,"Signal Catcher"]: reacting to signal 3

I/art: Wrote stack traces to '/data/anr/traces.txt'

I/Process: Sending signal. PID: 868 SIG: 3

I/art: Thread[5,tid=876,WaitingInMainSignalCatcherLoop,Thread*=0xef70d400,peer=0x12c00080,"Signal Catcher"]: reacting to signal 3

I/art: Wrote stack traces to '/data/anr/traces.txt'

I/art: Explicit concurrent mark sweep GC freed 39859(2MB) AllocSpace objects, 15(316KB) LOS objects, 33% free, 7MB/11MB, paused 367us total 18.175ms

E/ActivityManager: ANR in projectName
                                                             PID: 1927
                                                             Reason: Input dispatching timed out (Waiting to send non-key event because the touched window has not finished processing certain input events that were delivered to it over 500.0ms ago.  Wait queue length: 11.  Wait queue head age: 5549.6ms.)

Load: 0.19 / 0.05 / 0.02

CPU usage from 9247ms to 0ms ago:

2.3% 125/adbd: 0.1% user + 2.2% kernel / faults: 2072 minor

1.2% 764/system_server: 0.4% user + 0.8% kernel / faults: 239 minor

1.1% 1927/prjectName: 0.8% user + 0.3% kernel / faults: 731 minor

0.3% 303/local_opengl: 0% user + 0.3% kernel

0% 301/vinput: 0% user + 0% kernel

0.1% 1//init: 0% user + 0.1% kernel / faults: 9 minor

0.1% 8/rcu_preempt: 0% user + 0.1% kernel

0.1% 749/surfaceflinger: 0% user + 0.1% kernel

0.1% 1112/com.android.launcher3: 0.1% user + 0% kernel / faults: 377 minor

0.1% 1820/com.android.defcontainer: 0.1% user + 0% kernel / faults: 200 minor

1.5% TOTAL: 0.3% user + 1% kernel + 0% softer

CPU usage from 1802ms to 2307ms later with 99% awake:

3.9% 764/system_server: 0% user + 3.9% kernel / faults: 4 minor

1.4% TOTAL: 0.4% user + 0.4% kernel + 0.4% softirq