Android Spinner的使用

布局：

<Spinner
          android:id="@+id/spinner1"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
 />

使用：

private Spinner mSpinner;
private ArrayAdapter<String> adapter;

mSpinner = (Spinner) findViewById(R.id.spinner1);

//数据赋值

itemListManner = new ArrayList<String>();
  for (int i = 0; i < 3; i++) {
   itemListManner.add("审批方式  " + i);
  }

//填充数据

adapter = new ArrayAdapter<String>(this,
    android.R.layout.simple_spinner_item, itemListManner);
  mSpinner.setAdapter(adapter);
  
  mSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
      @Override
      public void onItemSelected(AdapterView<?> parent, View view,
              int position, long id) {
          String str=parent.getItemAtPosition(position).toString();
          Toast.makeText(BacklogApproval.this, "你点击的是:"+str, 2000).show();
      }
      @Override
      public void onNothingSelected(AdapterView<?> parent) {
          // TODO Auto-generated method stub
      }
  });