将准备好的布局转换为位图并将其另存为文件中的图像 [英] Convert prepared layout to bitmap and save as image in file

问题描述

我需要将准备好的布局保存到外部存储器中的图像文件中

I need to save my prepared layout to image file in external memory

目前，我尝试获取布局，启用图形缓存，传递给位图并保存在文件中

For now I've tried to get my layout, enable drawing cache, pass to bitmap and save in file

LayoutInflater inflate = LayoutInflater.from(this);
    View view = inflate.inflate(R.layout.to_send, null);
    view.setDrawingCacheEnabled(true);
    Bitmap returnedBitmap;
    if (view.getMeasuredHeight() <= 0) {
        view.measure(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);
        returnedBitmap = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
        returnedBitmap.recycle();
        Canvas c = new Canvas(returnedBitmap);
        view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
        view.draw(c);
    }
    else {
        returnedBitmap = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(returnedBitmap);
        Drawable bgDrawable = view.getBackground();
        if (bgDrawable != null)
            bgDrawable.draw(canvas);
        else
            canvas.drawColor(Color.WHITE);
        view.draw(canvas);
    }
    //Bitmap bitmap = content.getDrawingCache();
    File fPath = Environment.getExternalStorageDirectory();
    File f = new File(fPath + "Send.png");
    try {
        if (!f.exists()) {
            f.createNewFile();
        }
        FileOutputStream strm = new FileOutputStream(f);
        returnedBitmap.compress(Bitmap.CompressFormat.PNG, 80, strm);
        strm.close();
        //content.invalidate();
    }
    catch (Exception e){
        e.printStackTrace();
    } finally {
        view.setDrawingCacheEnabled(false);}

推荐答案

如果有人遇到相同的问题.这里解决了我的问题.在Activity中创建布局后，我只需要获取

In case if somebody meets the same problem. Here what solved my problem. I just needed to get Layout after it was created in Activity

RelativeLayout shareLayout = (RelativeLayout) getActivity().findViewById(R.id.loveSpace);
shareLayout.setDrawingCacheEnabled(true);
shareLayout.buildDrawingCache();
Bitmap bm = shareLayout.getDrawingCache();
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 100, bytes);

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