调用getDrawable（）时java.lang.OutOfMemoryError

Question

I get the following out of memory error and I'm not sure why.

Failed to allocate a 1860508 byte allocation with 905740 free bytes and 884KB until OOM

java.lang.OutOfMemoryError: Failed to allocate a 1860508 byte allocation with 905740 free bytes and 884KB until OOM
at dalvik.system.VMRuntime.newNonMovableArray(Native Method) 
at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:837)
at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:656) 
at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:1037) 

at android.content.res.Resources.loadDrawableForCookie(Resources.java:4056) 
at android.content.res.Resources.loadDrawable(Resources.java:3929) 
at android.content.res.Resources.getDrawable(Resources.java:1991) 
at android.content.res.Resources.getDrawable(Resources.java:1973) 
at android.graphics.drawable.LevelListDrawable.inflate(LevelListDrawable.java:128) 
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1192) 
at android.graphics.drawable.Drawable.createFromXml(Drawable.java:1086) 
at android.content.res.Resources.loadDrawableForCookie(Resources.java:4045) 
at android.content.res.Resources.loadDrawable(Resources.java:3929) 
at android.content.res.Resources.getDrawable(Resources.java:1991) 
at android.content.res.Resources.getDrawable(Resources.java:1973) 
at android.content.Context.getDrawable(Context.java:409)
at com.MyCompany.MyApp.Login.updateWifiStatus(Login.java:942)
at com.MyCompany.MyApp.Login$6.run(Login.java:576) 
at android.os.Handler.handleCallback(Handler.java:739) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:145) 
at android.app.ActivityThread.main(ActivityThread.java:6939) 
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1404) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1199) 

I am using a 5 level resource to indicate wifi status and here is the code I'm using

    WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);

    // Level of current connection
    int rssi = wifiManager.getConnectionInfo().getRssi();
    int level = WifiManager.calculateSignalLevel(rssi, 5);
    Drawable db = getDrawable(R.drawable.stat_sys_wifi_signal);
    db.setLevel(level);
    wifiMenu.setIcon(db);

The images are all the same size (512x512).

In reference to other answers out there I have got largeheap in my manifest.

Any help would be greatly appreciated.

Answer 1

Use TinyPNG

TinyPNG uses smart lossy compression techniques to reduce the file size of your PNG files. By selectively decreasing the number of colors in the image, fewer bytes are required to store the data. The effect is nearly invisible but it makes a very large difference in file size!

Compress all images using this link.

Reduce the size of all picture before use in your Android applications.

Make sure you read the document Loading Large Bitmaps Efficiently given by @mudit_sen.

Hope this may help you.