获取打开文件的默认应用程序的图标

问题描述

我具有特定文件的mime类型.我想获取打开文件的默认应用程序的图标.因此，对于音乐，如果这是我的默认音乐播放器，则将显示Winamp图标.我该怎么办?

I have the mime-type of a particular file. I want to get the icon of the default application that opens the file. So for music, I would display the Winamp icon if that was my default music player. How can I do this?

推荐答案

使用给定的mime类型和文件URI编写意图，然后调用 PackageManager.queryIntentActivities 上.

Compose an intent with the given mime type and file URI and call PackageManager.queryIntentActivities on it.

类似这样的东西:

final Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(fileUri);
intent.setType("image/png");

final List<ResolveInfo> matches = getPackageManager().queryIntentActivities(intent, 0);
for (ResolveInfo match : matches) {
    final Drawable icon = match.loadIcon(getPackageManager());
    final CharSequence label = match.loadLabel(getPackageManager());
}

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