将我的drawable文件夹中的图像实现到List

Question

如何实现 - 从我的drawable文件夹中打开图像，而不是打开这些url的图像？我尝试用（“drawable / img.jpg”）替换Url而没有运气。

public void startGalleryActivity() {
    ArrayList<String> images = new ArrayList<String>();
      images.add("http://sourcey.com/images/stock/salvador-dali-persistence-of-memory.jpg");
    images.add("http://sourcey.com/images/stock/salvador-dali-the-dream.jpg");


    Intent intent = new Intent(MainActivity.this, GalleryActivity.class);
    intent.putStringArrayListExtra(GalleryActivity.EXTRA_NAME, images);
    startActivity(intent);
}

Answer 1

由于R.drawable值是整数，请使用putIntegerArrayListExtra()：

public void startGalleryActivity() {
    ArrayList<Integer> images = new ArrayList<>();
    images.add(R.drawable.image_one);
    images.add(R.drawable.image_two);
    // and so on

    Intent intent = new Intent(MainActivity.this, GalleryActivity.class);
    intent.putIntegerArrayListExtra(GalleryActivity.EXTRA_NAME, images);
    startActivity(intent);
}