AndroidRuntime：发送多个图像时发生致命异常，java.lang.OutOfMemoryError

Question

我正在尝试使用API和okHttp3将很多图像发送到retrofit2。我尝试从一台设备发送图像（一次发送5张图像），效果很好。然后我尝试同时从5个设备发送5个图像，并且效果很好，但是当我尝试从5个设备发送30个图像时，出现以下错误：

    2020-01-17 14:57:07.416 32244-32264/my.example.com.puri W/zygote: Throwing OutOfMemoryError "Failed to allocate a 102554120 byte allocation with 8388608 free bytes and 97MB until OOM, max allowed footprint 174912000, growth limit 268435456"
2020-01-17 14:57:07.422 32244-32264/my.example.com.puri E/AndroidRuntime: FATAL EXCEPTION: OkHttp Dispatcher
    Process: my.example.com.puri, PID: 32244
    java.lang.OutOfMemoryError: Failed to allocate a 102554120 byte allocation with 8388608 free bytes and 97MB until OOM, max allowed footprint 174912000, growth limit 268435456
        at java.lang.StringFactory.newStringFromBytes(StringFactory.java:178)
        at java.lang.StringFactory.newStringFromBytes(StringFactory.java:209)
        at okio.Buffer.readString(Buffer.java:620)
        at okio.Buffer.readString(Buffer.java:603)
        at okhttp3.logging.HttpLoggingInterceptor.intercept(HttpLoggingInterceptor.java:198)
        at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
        at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
        at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:185)
        at okhttp3.RealCall$AsyncCall.execute(RealCall.java:135)
        at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
        at java.lang.Thread.run(Thread.java:764)

此error不在第一个发送请求的设备上，而是到达第三个或最后一个设备。我首先单击send按钮的设备总是成功。

我也对Manifest进行了这些更改。

<application
    android:hardwareAccelerated="false"
    android:largeHeap="true"
>

这是我发出请求的方式。

@Multipart
@POST("installationdocument")
Call<Void> createNewDocument(@Header(AUTH_HEADER) String authorization, @Part ArrayList<MultipartBody.Part> images, @Part("document") RequestBody json);

和：

@Override
public void callRestApi(PuriRestApi restApi, RestApiJobService.ApiRequestor apiRequestor) {
    MediaType JSON = MediaType.parse("application/json");
    MediaType JPG = MediaType.parse("image/jpg");

    ArrayList<MultipartBody.Part> imageParts = new ArrayList<>();
        for (String imagePath : imagePaths) {
            File image = new File(imagePath);
            RequestBody imageBody = RequestBody.create(JPG, image);
            imageParts.add(MultipartBody.Part.createFormData("images", image.getName(), imageBody));
        }
    RequestBody jsonPart = RequestBody.create(JSON, documentString);

    apiRequestor.request(restApi.createNewDocument(authentication, imageParts, jsonPart), response -> {
        if (response.isSuccessful()) {
            if (imagePaths != null && imagePaths.length > 0) {
                for (String imagePath : imagePaths) {
                    File image = new File(imagePath);
                    image.delete();
                }
            }
            return true;
        } else {
            return false;
        }
    });
}

也许创建一个大变量就是引发此错误的原因。因为变量ArrayList<MultipartBody.Part> imageParts将包含约150mb的图像数据和30张图像。但是除此之外，我不知道是什么原因导致此错误。

真的很感谢任何帮助。

Answer 1

在清单文件android：hardwareAccelerated =“ false”中添加以下实体，android：largeHeap =“ true”，它将在某些环境下工作。

<application
android:allowBackup="true"
android:hardwareAccelerated="false"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:largeHeap="true"
android:supportsRtl="true"
android:theme="@style/AppTheme">

See the StackOverflow answer for details...