java - android，如何通过位图找到ImageView？

Question

假设我有一个循环来创建 ImageView 并将它们添加到布局中

final LinearLayout linLayRow1 = (LinearLayout) findViewById(R.id.LLrow1);
    ...
try {
FileInputStream in1 = new FileInputStream(masterPath+shiftimage);
BufferedInputStream buf1 = new BufferedInputStream(in1);
Bitmap bMap1 = BitmapFactory.decodeStream(buf1);
ivBtnSym.setImageBitmap(bMap1);
in1.close();
buf1.close();
} catch (Exception e) { }
    ...
linLayBtnInside.addView(ivBtnSym);

现在我需要更改 ImageView 的位图，例如将 masterPath+"/1.png"更改为 masterPath+"/2.png"...你会怎么做？

谢谢! :)

Answer 1

如果您确定图像名称是唯一的

您可以尝试使用标签:

final LinearLayout linLayRow1 = (LinearLayout) findViewById(R.id.LLrow1);
    ...
try {
FileInputStream in1 = new FileInputStream(masterPath+shiftimage);
BufferedInputStream buf1 = new BufferedInputStream(in1);
Bitmap bMap1 = BitmapFactory.decodeStream(buf1);
ivBtnSym.setImageBitmap(bMap1);
ivBtnSym.setTag(masterPath+shiftimage);
in1.close();
buf1.close();
} catch (Exception e) { }
    ...
linLayBtnInside.addView(ivBtnSym);

现在当你想要检索 ImageView 时:

ImageView retrieved = (ImageView) linLayBtnInside.findViewByTag(query);