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[英]How to go through a listview and get the position of a item in it WITHOUT click on it Android Studio
[英]Android Studio - Click item in listview, get a value from that position
我试图能够在列表视图中单击一个项目,并获取stopIdRoutes(字符串)值,并将其传递给另一个意图。
这些值先放入HashMap,再放入列表。
我试图使用listview.getItemAtPosition(position);
但这只会引发错误: java.util.HashMap cannot be cast to ie.*.student.*.dublinbuses.getStopId
。
我该如何补救。 我在这里尝试了一些解决方案,但这种情况并没有帮助。
我还创建了一个getStopId类。
另外,要发送到下一个意图的stopIdRoutes是列表中的最后一个停止ID。
我的代码是:
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent i = new Intent(getApplicationContext(), StopIdResultsActivity.class);
getStopId getstopid_fromclass = (getStopId)lv.getItemAtPosition(position);
Log.i("Item", "Selected: " + getstopid_fromclass.getStopid());
//Create the bundle
Bundle bundle = new Bundle();
//Add your data to bundle
bundle.putString("stopid", stopidRoutes);
//Add the bundle to the intent
i.putExtras(bundle);
//Fire that second activity
startActivity(i);
}
});
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent i = new Intent(getApplicationContext(), StopIdResultsActivity.class);
GetStopId getstopid_fromclass = list[position];
//Create the bundle
Bundle bundle = new Bundle();
//Add your data to bundle
bundle.putString("stopid", getstopid_fromclass.getStopid());
//Add the bundle to the intent
i.putExtras(bundle);
//Fire that second activity
startActivity(i);
}
})
在其他活动中将其获取为:-
String stopID = getIntent().getExtras().getString("stopid");
尝试使用此方法,如果仍然出现错误,请告诉我错误
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