java - 来自字符串的 setImageResource

Question

我想根据我的字符串更改 imageview src，我有这样的东西:

ImageView imageView1 = (ImageView)findViewById(R.id.imageView1);

String correctAnswer = "poland";
String whatEver = R.drawable+correctAnswer;
imageView1.setImageResource(whatEver);

当然不行。如何以编程方式更改图像？

Answer 1

public static int getImageId(Context context, String imageName) {
    return context.getResources().getIdentifier("drawable/" + imageName, null, context.getPackageName());
}

使用: imageView1.setImageResource(getImageId(this, correctAnswer);

注意:去掉扩展名(例如，“.jpg”)。

示例:图片为“abcd_36.jpg”

Context c = getApplicationContext();
int id = c.getResources().getIdentifier("drawable/"+"abcd_36", null, c.getPackageName());
((ImageView)v.findViewById(R.id.your_image_on_your_layout)).setImageResource(id);