Android - 从@drawable String 打开资源

Question

我有:

String uri = "@drawable/myresource.png";

如何在 ImageView 中加载它？ this.setImageDrawable?

Answer 1

如果您确实需要使用字符串，请尝试以下操作:

private void showImage() {
    String uri = "drawable/icon";

    // int imageResource = R.drawable.icon;
    int imageResource = getResources().getIdentifier(uri, null, getPackageName());

    ImageView imageView = (ImageView) findViewById(R.id.myImageView);
    Drawable image = getResources().getDrawable(imageResource);
    imageView.setImageDrawable(image);
}

否则，我建议您使用这样的 R.* 引用:

int imageResource = R.drawable.icon;
Drawable image = getResources().getDrawable(imageResource);