Android使用AlertDialog实现的信息列表单选、多选对话框功能

<resources>
<!--单选-->
<string-array name="arr_weather">
  <item >晴</item>
  <item >多云</item>
  <item >小雨</item>
  <item >中雨</item>
 </string-array>
<!--多选-->
<string-array name="arr_grasslandGreatType">
  <item >羊草</item>
  <item >牛草</item>
 </string-array>
</resources>

case R.id.edt_sampleWeather:// 天气选取
String[] arrWeather = getResources().getStringArray(R.array.arr_weather);
showAlertDialog(arrWeather, selectWeatherId, 0, tv_sampleWeather);
break;
case R.id.edt_grasslandGreatType:// 草地优势种选择
showMultiDialog();
break;

private void showAlertDialog(final String[] items, int selectId, final int type, final TextView tView) {
AlertDialog.Builder builder = new AlertDialog.Builder(CreatePointActivity.this);
builder.setSingleChoiceItems(items, selectId, new DialogInterface.OnClickListener() {// 第二个参数是设置默认选中哪一项-1代表默认都不选
@Override
public void onClick(DialogInterface dialog, int which) {
tView.setText(items[which]);
if (type == 0) {
selectWeatherId = which;
} else if (type == 1) {
selectGrassLandTypeId = which;
} else if (type == 2) {
selectAgroTypeId = which;
}
dialog.dismiss();
}
});
AlertDialog dialog = builder.create();
dialog.show();
dialog.setCanceledOnTouchOutside(true);// dialog弹出后，点击界面其他部分dialog消失
}

boolean[] selected = new boolean[] { false, false };//默认选中位置
private void showMultiDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("草地优势种选择列表");
DialogInterface.OnMultiChoiceClickListener mutiListener = new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int which, boolean isChecked) {
selected[which] = isChecked;
}
};
builder.setMultiChoiceItems(R.array.arr_grasslandGreatType, selected, mutiListener);
DialogInterface.OnClickListener btnListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int which) {
String selectedStr = "";
for (int i = 0; i < selected.length; i++) {
if (selected[i] == true) {
selectedStr = selectedStr + " "
+ getResources().getStringArray(R.array.arr_grasslandGreatType)[i];
}
}
if (!TextUtils.isEmpty(selectedStr)) {
tv_grasslandGreatType.setText(selectedStr);
} else {
tv_grasslandGreatType.setText("暂无选择");
}
}
};
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", btnListener);
AlertDialog dialog = builder.create();
dialog.show();
dialog.setCanceledOnTouchOutside(true);// dialog弹出后，点击界面其他部分dialog消失
}