影响基于第一微调微调第二选择 [英] Affect Second Spinner Choices based on First Spinner

问题描述

所以，我可以看到有这个问题，但不是在我的范围。我栋为Android有两个微调器的应用程序。第一有更多选择的阵列。但是，我不知道如何影响到第二个具有基于第一个选择是什么。我知道，你可以把

So I can see that there are questions about this, but not in the scope of mine. I am buliding an app for Android that has two spinners. The first has an array of choices. However, I am not sure how to affect what choices the second one has based on the first one. I know that you can put in

AdapterView.OnItemSelectedListener 

但我不知道如何实现这一点。我读过这个，但它并不完全符合我要找的。我也好奇，我怎么告诉微调阵列选择哪个，它是在.xml或在java文件？

but I'm not sure how to implement this. I've read on this but it's not quite what I'm looking for. I'm also curious as to how I tell the spinner which array to choose, is it in the .xml or in the .java file?

推荐答案

试试这个，

firstSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> arg0, View arg1,
                    int arg2, long arg3) {
                // TODO Auto-generated method stub

                    string selectedValue = arg0.getSelectedItem().toString();
                    if(selectedValue.equalsIgnoreCase(string1)
                    {
                        ArrayAdapter<String> firstAdapter = new ArrayAdapter<String>(this,
                            android.R.layout.simple_list_item_1, firstArray);

                        secondSpinner.setAdapter(firstAdapter);//
                    }

                   else if(selectedValue.equalsIgnoreCase(string2)
                   {
                      ArrayAdapter<String> firstAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, array2);

                      secondSpinner.setAdapter(firstAdapter);

                   }
            }

希望它会帮助你。

Hope it will help you.

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