FindViewById环路

Question

我想试着把它放到一个循环中，但是我似乎不能使R.id.imageView匹配。我尝试过:在for循环中使用string id = "R.id.imageView"+i，但它与findViewById的参数不匹配。有什么想法吗？非常感谢您的帮助。

   buttons[0] = (ImageView) this.findViewById(R.id.imageView1);
   buttons[1] = (ImageView) this.findViewById(R.id.imageView2);
   buttons[2] = (ImageView) this.findViewById(R.id.imageView3);
   buttons[3] = (ImageView) this.findViewById(R.id.imageView4);
   buttons[4] = (ImageView) this.findViewById(R.id.imageView5);
   buttons[5] = (ImageView) this.findViewById(R.id.imageView6);
   buttons[6] = (ImageView) this.findViewById(R.id.imageView7);
   buttons[7] = (ImageView) this.findViewById(R.id.imageView8);
   buttons[8] = (ImageView) this.findViewById(R.id.imageView9);
   buttons[9] = (ImageView) this.findViewById(R.id.imageView10);
   buttons[10] = (ImageView) this.findViewById(R.id.imageView11);
   buttons[11] = (ImageView) this.findViewById(R.id.imageView12);

Answer 1

获取R.id.imageView1...12的一个Integer数组，并将其值传递为

private Integer[] Imgid = {R.id.imageview1,....,12  };

并使用数组

Answer 2

使用getIdentifier()方法：

Resources res = getResources(); //if you are in an activity
for (int i = 1; i < 13; i++) {
   String idName = "imageView" + i;
   buttons[i] = (ImageView) findViewById(res.getIdentifier(idName, "id, getPackageName()));
}

Answer 3

和上面一样，只是修复了打字错误。看起来比‘最佳答案’更好，因为如果你不需要的话，你不需要定义任何数组。

Resources res = getResources(); //if you are in an activity
for (int i = 1; i < 13; i++) {
  String idName = "imageView" + i;
  imageViews[i] = (ImageView) findViewById(res.getIdentifier(idName, "id", getPackageName()));
}