无法分配7144212字节分配，其中包含4194304可用字节和4MB，直到OOM

Question

我正在尝试通过一个字符串数组生成图像，方法是通过绘画画布将字符串文本转换为位图，并且在一个活动中生成50张图像。

public View getView(int position, View convertView, ViewGroup parent) {
        ImageView imageView;
        Bitmap copy;
        DisplayMetrics displayMetrics = new DisplayMetrics ();
        getWindowManager ().getDefaultDisplay ().getMetrics (displayMetrics);
        int width = displayMetrics.widthPixels;

        String text = listArray[position];
        text.replace("\'", "");
        text.replace("\"", "");

        Bitmap icon = BitmapFactory.decodeResource (mContext.getResources (), R.drawable.abraham);
        TextPaint paint = new TextPaint ();
        paint.setColor (Color.parseColor ("#000000"));
        paint.setTextSize ((width / 10) - (text.length () / 6));
        paint.setTypeface (Typeface.create (Typeface.createFromAsset (mContext.getAssets (), "fonts/underwood_champion.ttf"), Typeface.BOLD));
        copy = icon.copy (Bitmap.Config.RGB_565, true);
        Canvas canvas = new Canvas (copy);
        StaticLayout layout = new StaticLayout (text, paint, canvas.getWidth () - 100, Layout.Alignment.ALIGN_CENTER, 1.3f, 3, false);
        canvas.translate (100, (width / 2)+30);//(canvas.getHeight()/2)-(text.length ())); //position the text
        layout.draw (canvas);

        int size = width / 2;
        imageView = new ImageView (mContext);
        imageView.setLayoutParams (new GridView.LayoutParams (size, size));
        imageView.setScaleType (ImageView.ScaleType.CENTER_CROP);
        imageView.setPadding (30, 30, 30, 30);
        imageView.setImageBitmap (copy);
        return imageView;
    }

我遇到了例外情况：

Process: com.ahsaashafeez.textoverbitmap, PID: 7957
java.lang.OutOfMemoryError: Failed to allocate a 7144212 byte allocation with 4194304 free bytes and 4MB until OOM
    at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
    at android.graphics.Bitmap.nativeCopy(Native Method)
    at android.graphics.Bitmap.copy(Bitmap.java:592)
    at com.ahsaashafeez.textoverbitmap.MainActivity$ImageAdapter.getView(MainActivity.java:84)
    at android.widget.AbsListView.obtainView(AbsListView.java:2362)
    at android.widget.GridView.makeAndAddView(GridView.java:1439)

在MainActivity行中：

copy = icon.copy (Bitmap.Config.RGB_565, true);

注意：我已经完成了该步骤。

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