有没有办法将字符串变量放在图像视图中答案

【问题标题】：Is there a way to put a string variable in an imageview有没有办法将字符串变量放在图像视图中
【发布时间】：2020-05-02 20:39:58
【问题描述】：

我有 5 个 Imageview 即 Mycards_Slot1、Mycards_Slot2、Mycards_Slot3、Mycards_Slot4 和 Mycards_Slot5 在 switch 语句中，我可以使用字符串来设置 imageview 中的图像资源，而不是重新输入它们并将它们用于其他 imageview。请帮助我，谢谢。

 switch(Frank_Share_counter) {
        case 1:
            MyCards_Slot1.setVisibility(View.VISIBLE);
            if (Frank_CS1==one){MyCards_Slot1.setImageResource(R.drawable.need_one);}//need(5)
            if (Frank_CS1==two){MyCards_Slot1.setImageResource(R.drawable.need_two);}
            if (Frank_CS1==three){MyCards_Slot1.setImageResource(R.drawable.need_three);}
            if (Frank_CS1==four){MyCards_Slot1.setImageResource(R.drawable.need_four);}
            if (Frank_CS1==five){MyCards_Slot1.setImageResource(R.drawable.need_five);}
            if (Frank_CS1==six){MyCards_Slot1.setImageResource(R.drawable.circle_one);}//circle(13)
            if (Frank_CS1==seven){MyCards_Slot1.setImageResource(R.drawable.circle_two);}
            if (Frank_CS1==eight){MyCards_Slot1.setImageResource(R.drawable.circle_three);}
            if (Frank_CS1==nine){MyCards_Slot1.setImageResource(R.drawable.circle_four);}
            if (Frank_CS1==ten){MyCards_Slot1.setImageResource(R.drawable.circle_five);}
            if (Frank_CS1==eleven){MyCards_Slot1.setImageResource(R.drawable.circle_seven);}
            if (Frank_CS1==twelve){MyCards_Slot1.setImageResource(R.drawable.circle_eight);}
            if (Frank_CS1==thirteen){MyCards_Slot1.setImageResource(R.drawable.circle_nine);}
            if (Frank_CS1==fourteen){MyCards_Slot1.setImageResource(R.drawable.circle_ten);}
            if (Frank_CS1==fifteen){MyCards_Slot1.setImageResource(R.drawable.circle_eleven);}
            if (Frank_CS1==sixteen){MyCards_Slot1.setImageResource(R.drawable.circle_twelve);}
            if (Frank_CS1==seventeen){MyCards_Slot1.setImageResource(R.drawable.circle_thieteen);}
            if (Frank_CS1==eighteen){MyCards_Slot1.setImageResource(R.drawable.cross_one);}//cross(9)
            if (Frank_CS1==nineteen){MyCards_Slot1.setImageResource(R.drawable.cross_two);}
            if (Frank_CS1==twenty){MyCards_Slot1.setImageResource(R.drawable.cross_three);}
            if (Frank_CS1==twenty_one){MyCards_Slot1.setImageResource(R.drawable.cross_five);}
            if (Frank_CS1==twenty_two){MyCards_Slot1.setImageResource(R.drawable.cross_seven);}
            if (Frank_CS1==twenty_three){MyCards_Slot1.setImageResource(R.drawable.cross_ten);}
            if (Frank_CS1==twenty_four){MyCards_Slot1.setImageResource(R.drawable.cross_eleven);}
            if (Frank_CS1==twenty_five){MyCards_Slot1.setImageResource(R.drawable.cross_thirteen);}
            if (Frank_CS1==twenty_six){MyCards_Slot1.setImageResource(R.drawable.cross_fourteen);}
            if (Frank_CS1==twenty_seven){MyCards_Slot1.setImageResource(R.drawable.square_one);}//square(11)
            if (Frank_CS1==twenty_eight){MyCards_Slot1.setImageResource(R.drawable.square_two);}
            if (Frank_CS1==twenty_nine){MyCards_Slot1.setImageResource(R.drawable.square_three);}
            if (Frank_CS1==thirty){MyCards_Slot1.setImageResource(R.drawable.square_five);}
            if (Frank_CS1==thirty_one){MyCards_Slot1.setImageResource(R.drawable.square_seven);}
            if (Frank_CS1==thirty_two){MyCards_Slot1.setImageResource(R.drawable.square_eight);}
            if (Frank_CS1==thirty_three){MyCards_Slot1.setImageResource(R.drawable.square_ten);}
            if (Frank_CS1==thirty_four){MyCards_Slot1.setImageResource(R.drawable.square_eleven);}
            if (Frank_CS1==thirty_five){MyCards_Slot1.setImageResource(R.drawable.square_twelve);}
            if (Frank_CS1==thirty_six){MyCards_Slot1.setImageResource(R.drawable.square_thirteen);}
            if (Frank_CS1==thirty_seven){MyCards_Slot1.setImageResource(R.drawable.star_one);}//star(7)
            if (Frank_CS1==thirty_eight){MyCards_Slot1.setImageResource(R.drawable.star_two);}
            if (Frank_CS1==thirty_nine){MyCards_Slot1.setImageResource(R.drawable.star_three);}
            if (Frank_CS1==forty){MyCards_Slot1.setImageResource(R.drawable.star_four);}
            if (Frank_CS1==forty_one){MyCards_Slot1.setImageResource(R.drawable.star_five);}
            if (Frank_CS1==forty_two){MyCards_Slot1.setImageResource(R.drawable.star_seven);}
            if (Frank_CS1==forty_three){MyCards_Slot1.setImageResource(R.drawable.star_eight);}
            if (Frank_CS1==forty_four){MyCards_Slot1.setImageResource(R.drawable.triangle_one);}//Triangle(12)
            if (Frank_CS1==forty_five){MyCards_Slot1.setImageResource(R.drawable.triangle_two);}
            if (Frank_CS1==forty_six){MyCards_Slot1.setImageResource(R.drawable.triangle_three);}
            if (Frank_CS1==forty_seven){MyCards_Slot1.setImageResource(R.drawable.triangle_four);}
            if (Frank_CS1==forty_eight){MyCards_Slot1.setImageResource(R.drawable.triangle_five);}
            if (Frank_CS1==forty_nine){MyCards_Slot1.setImageResource(R.drawable.triangle_seven);}
            if (Frank_CS1==fifty){MyCards_Slot1.setImageResource(R.drawable.triangle_eight);}
            if (Frank_CS1==fifty_one){MyCards_Slot1.setImageResource(R.drawable.triangle_ten);}
            if (Frank_CS1==fifty_two){MyCards_Slot1.setImageResource(R.drawable.triangle_eleven);}
            if (Frank_CS1==fifty_three){MyCards_Slot1.setImageResource(R.drawable.triangle_twelve);}
            if (Frank_CS1==fifty_four){MyCards_Slot1.setImageResource(R.drawable.triangle_thirteen);}
            if (Frank_CS1==fifty_five){MyCards_Slot1.setImageResource(R.drawable.triangle_fourteen);}
            if (Frank_CS1==fifty_six){MyCards_Slot1.setImageResource(R.drawable.circle_fourteen);}//by mistake
            if (Frank_CS1==fifty_seven){MyCards_Slot1.setImageResource(R.drawable.square_fourteen);}//by mistake

            break;
        default:
            Toast.makeText(this, "Could not find song", Toast.LENGTH_LONG).show();
    }

【问题讨论】：

这能回答你的问题吗？ How to set an imageView's image from a string?
您可以将Resources#getIdentifier() 方法与您的图像名称一起使用，以获取与setImageResource() 一起使用的相应资源ID。上面链接的帖子中有示例。
但这意味着获取所有 imageview 和图像的资源标识符，这比重用 switch 语句更困难
我不确定你的意思。您的问题指出“我可以使用字符串在图像视图中设置图像资源”。这正是它所允许的。
我的意思是图像视图，类似于这个字符串 chageimg="MyCards" if (Frank_CS1==one){changeimg.setImageResource(R.drawable.need_one);}

标签： java html android-studio

【解决方案1】：

我根据我对您问题的理解来回答：

我假设您想以某种方式引用drawables，那么您可以在int 中设置资源ID

//reference them like this:
int need_one = R.drawable.need_one;
int need_two = R.drawable.need_one;
int need_three = R.drawable.need_three;
//.......
//complete the rest by yourself



//and just use them like this:


.........

if (Frank_CS1==one){MyCards_Slot1.setImageResource(need_one);}
if (Frank_CS1==two){MyCards_Slot1.setImageResource(need_two);}
if (Frank_CS1==three){MyCards_Slot1.setImageResource(need_three);}
.....
....
....

【讨论】：