加载应用程序的图标和获取内存不足的异常而调整 [英] Load applications icons and getting OutOfMemory exception while resizing

问题描述

下面是code：（所有异步同时显示进度条执行）

Here is the code : (All executed async while showing a progress bar)

List<ResolveInfo> apps = pm.queryIntentActivities(intent, PackageManager.GET_META_DATA);
for (ResolveInfo app : apps) {
    String label = app.activityInfo.loadLabel(pm).toString();
    Drawable icon = app.activityInfo.loadIcon(pm);
    Drawable resizedIcon = null;
    if (icon instanceof BitmapDrawable) {
        resizedIcon = Graphics.resize(icon, res, iconW, iconH);
    }
    AppInfo ai = new AppInfo(app, label, resizedIcon);
    items.add(ai);
}

下面是 Graphics.resize（）：

Bitmap b = ((BitmapDrawable)image).getBitmap();
Bitmap bitmapResized = Bitmap.createScaledBitmap(b, widthPx, heightPx, false);
b.recycle();
return new BitmapDrawable(res, bitmapResized);

通常这一切工作正常，但我没有得到有关内存溢出异常，同时呼吁 Bitmap.createScaledBitmap （我试图重新大小到32dp）的报告结果
我读了有关处理及显示位图，但在这里，我想在用户看到的应用程序名称要立即显示的应用程序图标，而不是刚开始加载。 （我可以通过实现 RecyclerView ）

Generally it all works fine, but I did get a report about out of memory exception while calling Bitmap.createScaledBitmap (i'm trying to re-size to 32dp)
I read about handling and displaying bitmaps , but here, I want the app icon to be displayed immediately while the user sees the app name, and not just start being loaded. (which I can achieve by using RecyclerView)

推荐答案

您可以设置大型堆属性为true。

You can set the large heap attribute to true.

还有一种方式，可以使用图像加载器的形象，所以你得到的图标将被存储在设备上。

There is also a way you can use image loader in that image so the icon you get will be stored on the device.

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