Android Manager之AssetManager

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1.Android 获取Asset/ 中的图片

private Bitmap getImageFromAssetsFile(String fileName) {
        Bitmap image = null;
        AssetManager am = getResources().getAssets();
        try {
            InputStream is = am.open(fileName);
            image = BitmapFactory.decodeStream(is);
            is.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return image;
    }

imageview=findViewById(R.id.activity_listview_imageview);
Bitmap bitmap=getImageFromAssetsFile("tab_my_pressed.png");
imageview.setImageBitmap(bitmap);