从资产的文件夹的android共享图像 [英] android share images from assets folder

问题描述

我想从我的资产文件夹共享的图像。我的code是：

I'm trying to share an image from my assets folder. My code is:

Intent share = new Intent(Intent.ACTION_SEND);
share.setType("image/jpg");
share.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///assets/myImage.jpg"));
startActivity(Intent.createChooser(share, "Share This Image"));

，但它不工作。你有什么想法？

but it doesn't work. Do you have any ideas?

推荐答案

这是可能的共享文件（影像含）的资产，通过自定义文件夹的ContentProvider

It is possible to share files (images including) from the assets folder through a custom ContentProvider

您需要延长的ContentProvider ，在你的清单中注册并执行 openAssetFile 方法。然后，您可以通过乌里取值

You need to extend ContentProvider, register it in your manifest and implement the openAssetFile method. You can then assess the assets via Uris

    @Override
    public AssetFileDescriptor openAssetFile(Uri uri, String mode) throws FileNotFoundException {
        AssetManager am = getContext().getAssets();
        String file_name = uri.getLastPathSegment();

        if(file_name == null) 
            throw new FileNotFoundException();
        AssetFileDescriptor afd = null;
        try {
            afd = am.openFd(file_name);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return afd;
    }

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