Xamarin Form Exception Heaps size and OutOfMemoryError

Question

How can I enable large heap in my Xamarin.Forms application ?

Here is MainActivity.cs Android code:

 public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
    protected override void OnCreate(Bundle bundle)
    {
        TabLayoutResource = Resource.Layout.Tabbar;
        ToolbarResource = Resource.Layout.Toolbar;

        base.OnCreate(bundle);
        global::Xamarin.Forms.Forms.Init(this, bundle);
        RoundedBoxViewRenderer.Init();
        LoadApplication(new App());
    }
}

See Exception Screenshot below:

imrohit · Accepted Answer · 2016-12-09 07:48:24Z

1

Go to project Options > Android Build > General > Enable MultiDex & Options > Android Build > Advacnced > JavaHeapSize (Set 3G) , In manifest file you can add android:largeHeap="true" in Application Tag

<application android:largeHeap="true"/>

answered Dec 9, 2016 at 7:48

imrohit

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6 Comments

Zuhaib Ali Shah Over a year ago

how can i get these option in VS2013

imrohit Over a year ago

Go to Solution Explorer , Right Click on the Android Project eg. MyProject.Droid in Popup select Properties/Option then follow the above

tequila slammer Over a year ago

Before you enable largeHeap you should try to find out what causes the OutOfMemoryException and fix that. In most if not all cases are memory leaks the root of all that eval. Go use the Xamarin Profiler and Android Studios memory monitor to profile your apps memory usage.

Zuhaib Ali Shah Over a year ago

we have set heapsize to 3G , but unable to find manifest file for add tag. where is it ? - imrohit

Zuhaib Ali Shah Over a year ago

We have got the manifest file and added tag as you type above, OutOfMemoryException still there its crashes the app when we load images from URLs.

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Community · Accepted Answer · 2020-06-20 09:12:55Z

1

The Xamarin way of setting the Dalvik/Art large heap via the Appication attribute:

Application.cs

using System;
using Android.App;
using Android.Runtime;

namespace LargeHeap
{
    [Application(LargeHeap = true)]
    public class XamarinApplication : Application
    {
        public XamarinApplication(IntPtr handle, JniHandleOwnership ownerShip) : base(handle, ownerShip)
        {
        }
    }
}

If true, then the process should be created with a large Dalvik heap; otherwise, the process will be created with the default Dalvik heap.

Ref: https://developer.xamarin.com/api/property/Android.App.ApplicationAttribute.LargeHeap/

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Dec 9, 2016 at 8:07

SushiHangover

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Comments

Lakhwinder Singh · Accepted Answer · 2019-03-06 23:42:54Z

0

My contribution, it worked for me:

[assembly: Application(LargeHeap = true)]

namespace Project.Droid
{
    [Activity(.............)]

    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
    {

    }
}

edited Mar 6, 2019 at 23:42

Lakhwinder Singh

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answered Mar 6, 2019 at 22:35

Arturo Terceros

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