我正在创建一个对话框警报,显示一个无线电组,根据所选的选项,它将使用一个或另一个数组的内容填充列表。这些数组填充在主要活动上,因此它们是不是空的。我的问题是尝试填充对话框中的列表,数组结果为空,我不知道如何在那里传递填充值。
这些是导致问题的行:
adapter = new populateListView(MainActivity.this, all_times_array, all_runtimes_array);
这是我的对话框的代码:
public void dialog_filter() {
final String[] grpname = {
"Today",
"This Month",
"This Year",
"All time"
};
AlertDialog.Builder alt_bld = new AlertDialog.Builder(this);
//alt_bld.setIcon(R.drawable.icon);
alt_bld.setTitle("See reports from ...");
alt_bld.setSingleChoiceItems(grpname, -1, new DialogInterface
.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
time_filter = item;
System.out.println(time_filter);
Toast.makeText(getApplicationContext(),
grpname[item] + " selected", Toast.LENGTH_SHORT).show();
switch (time_filter) {
case 3:
adapter = new populateListView(MainActivity.this, all_times_array, all_runtimes_array);
bannertext = "Total seizures:" + " " + total_seizures;
banner.setText(bannertext);
list.setAdapter(adapter);
break;
case 0:
adapter = new populateListView(MainActivity.this, today_times_array, today_runtimes_array);
bannertext = "Today seizures:" + " " + today_seizures;
banner.setText(bannertext);
list.setAdapter(adapter);
break;
case 1:
adapter = new populateListView(MainActivity.this, month_times_array, month_runtimes_array);
bannertext = "Month seizures:" + " " + month_seizures;
banner.setText(bannertext);
list.setAdapter(adapter);
break;
case 2:
adapter = new populateListView(MainActivity.this, year_times_array, year_runtimes_array);
bannertext = "Year seizures:" + " " + year_seizures;
banner.setText(bannertext);
list.setAdapter(adapter);
break;
}
dialog.dismiss();
}
});
AlertDialog alert = alt_bld.create();
alert.show();
这些是我的pupulateListView类的方法:
class populateListView extends ArrayAdapter <String>
{
Context context;
String [] times;
String [] runtimes;
populateListView(Context c,String [] tms, String [] rts)
{
super(c, seizure_list2,R.id.firstLine,tms);
this.context=c;
this.runtimes=rts;
this.times = tms;
}
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(seizure_list2,parent,false);
TextView runtime_text = (TextView) row.findViewById(R.id.secondLine);
TextView time_text = (TextView) row.findViewById(R.id.firstLine);
time_text.setText(times[position]);
runtime_text.setText(runtimes[position]);
return row;
}
}
答案 0 :(得分:0)
只是一个建议! 使用您的广播组创建布局文件,并将此布局设置为警报对话
dialog.setContentView(R.layout.yourlayout);
之后在布局中引用你的radioi组
RadioGroup youradiogroup = (RadioGroup) dialog.findViewById(R.id.youradiogroupID);
并获取
中所选项目的值youradiogroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
public void onCheckedChanged(RadioGroup group,
int checkedId) {
if (checkedId == R.id.first_radiobutton) {
//do something}
else if (checkedId == R.id.second_radiobutton) {
//do something else }
}
});
希望它有所帮助!