问题
My project contains listView(homelistView) that contains button(btnList).
When I click on button(btnList) it must go to another Activity. I tried a lot but I didn't find a good example.
Please suggest me a good example regarding this.
Below is my code:
Here is my listview contains button. When on click of button it must go to other activity
--------------------------------A--
text text button(btnList) B
--------------------------------C---
text text BUTTON(btnList) D
--------------------------------E--
homempleb.xml
Before i used this code in xml. buttonlist worked fine for me as per below code
<ListView
android:id="@+id/homelistView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1.04"
android:dividerHeight="0dip" >
</ListView>
EfficientAdapter.java
public EfficientAdapter(Context context) {
mInflater = LayoutInflater.from(context);
this.context=context;
}
In your ViewHolder class you need to add `Button btnList.`
holder.btnList.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent next=new Intent(context, SeviceDetails.class);
context.startActivity(next);
}
});
homempleb.xml
Currently i added scroll index to my listview and changed the code as per below.. Listbutton is not working for me now.. Plz help me u can see code for quick reference in EfficientAdapter.JAVA-----> getview method--->holder.btnList.
<com.woozzu.android.widget.IndexableListView
android:id="@+id/homelistView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1.04"
android:dividerHeight="0dip" >
</com.woozzu.android.widget.IndexableListView>
MainActivity.java
public class MainActivity extends Activity implements
SearchView.OnQueryTextListener, SearchView.OnCloseListener {
private ListView listView;
// private IndexableListView listView;
private SearchView search;
EfficientAdapter objectAdapter;
// EfficientAdapter2 objectAdapter1;
int textlength = 0;
private CheckBox checkStat, checkRoutine, checkTat;
private ArrayList<Patient> patientListArray;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.homempleb);
Log.i("scan", " txtScanResult ");
ActionItem nextItem = new ActionItem();
final QuickAction quickAction = new QuickAction(this,
QuickAction.VERTICAL);
quickAction.addActionItem(nextItem);
quickAction.setOnDismissListener(new QuickAction.OnDismissListener() {
@Override
public void onDismiss() {
Toast.makeText(getApplicationContext(), "Dismissed",
Toast.LENGTH_SHORT).show();
}
});
search = (SearchView) findViewById(R.id.searchView1);
search.setIconifiedByDefault(false);
search.setOnQueryTextListener(this);
search.setOnCloseListener(this);
search.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
quickAction.show(v);
}
});
checkStat = (CheckBox) findViewById(R.id.checkBoxStat);
checkRoutine = (CheckBox) findViewById(R.id.checkBoxRoutine);
checkTat = (CheckBox) findViewById(R.id.checkBoxTat);
checkStat.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (((CheckBox) v).isChecked()) {
checkStat.setChecked(true);
Toast.makeText(MainActivity.this, "STAT",
Toast.LENGTH_SHORT).show();
checkRoutine.setChecked(false);
checkTat.setChecked(false);
}
}
});
checkRoutine.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (((CheckBox) v).isChecked()) {
checkRoutine.setChecked(true);
Toast.makeText(MainActivity.this, "ROUTINE",
Toast.LENGTH_SHORT).show();
checkStat.setChecked(false);
checkTat.setChecked(false);
}
}
});
checkTat.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (((CheckBox) v).isChecked()) {
checkTat.setChecked(true);
Toast.makeText(MainActivity.this, "TAT Effeciency",
Toast.LENGTH_SHORT).show();
checkRoutine.setChecked(false);
checkStat.setChecked(false);
}
}
});
// listView = (IndexableListView) findViewById(R.id.homelistView);
listView = (ListView) findViewById(R.id.homelistView);
listView.setTextFilterEnabled(true);
listView.setFastScrollEnabled(true);
listView.setFastScrollAlwaysVisible(true);
objectAdapter = new EfficientAdapter(this);
listView.setAdapter(objectAdapter);
Button refreshButton = (Button) findViewById(R.id.refreshButton);
refreshButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// objectAdapter1 = new EfficientAdapter2(MainActivity.this);
objectAdapter = new EfficientAdapter(MainActivity.this);// adapter
// with
// new
// data
listView.setAdapter(objectAdapter);
Log.i("notifyDataSetChanged", "data updated");
// objectAdapter1.notifyDataSetChanged();
objectAdapter.notifyDataSetChanged();
}
});
}
@Override
public boolean onClose() {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
}
EfficientAdapter.JAVA
public class EfficientAdapter extends BaseAdapter implements SectionIndexer {
private String mSections = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ";
ArrayList<Patient> patientListArray;
private LayoutInflater mInflater;
private Context context;
ViewHolder holder;
public EfficientAdapter(Context context) {
mInflater = LayoutInflater.from(context);
this.context = context;
String patientListJson = CountriesList.jsonData;
JSONObject jssson;
try {
jssson = new JSONObject(patientListJson);
patientListJson = jssson.getString("PostPatientDetailResult");
} catch (JSONException e) {
e.printStackTrace();
}
Gson gson = new Gson();
JsonParser parser = new JsonParser();
JsonArray Jarray = parser.parse(patientListJson).getAsJsonArray();
patientListArray = new ArrayList<Patient>();
for (JsonElement obj : Jarray) {
Patient patientList = gson.fromJson(obj, Patient.class);
patientListArray.add(patientList);
Log.i("patientList", patientListJson);
}
}
/**
* sorting the patientListArray data
*/
public void sortMyData() {
// sorting the patientListArray data
Collections.sort(patientListArray, new Comparator<Object>() {
@Override
public int compare(Object o1, Object o2) {
Patient p1 = (Patient) o1;
Patient p2 = (Patient) o2;
return p1.getName().compareToIgnoreCase(p2.getName());
}
});
}
public int getCount() {
return patientListArray.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = mInflater.inflate(R.layout.homemplebrowview, null);
holder = new ViewHolder();
holder.text1 = (TextView) convertView.findViewById(R.id.name);
holder.text2 = (TextView) convertView.findViewById(R.id.mrn);
holder.text3 = (TextView) convertView.findViewById(R.id.date);
holder.text4 = (TextView) convertView.findViewById(R.id.age);
holder.text5 = (TextView) convertView.findViewById(R.id.gender);
holder.text6 = (TextView) convertView.findViewById(R.id.wardno);
holder.text7 = (TextView) convertView.findViewById(R.id.roomno);
holder.text8 = (TextView) convertView.findViewById(R.id.bedno);
holder.btnList = (Button) convertView.findViewById(R.id.listbutton);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.text1.setText(Util.formatN2H(patientListArray.get(position)
.getName()));
holder.text2.setText(patientListArray.get(position).getMrnNumber());
holder.text3.setText(Util.formatN2H(patientListArray.get(position)
.getRoom()));
holder.text4.setText(Util.formatN2H(patientListArray.get(position)
.getAge()));
holder.text5.setText(Util.formatN2H(patientListArray.get(position)
.getGender()));
holder.text6.setText(Util.formatN2H(patientListArray.get(position)
.getWard()));
holder.text7.setText(Util.formatN2H(patientListArray.get(position)
.getRoom()));
holder.text8.setText(Util.formatN2H(patientListArray.get(position)
.getBed()));
holder.btnList.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(context, "STAT", Toast.LENGTH_SHORT).show();
Intent next = new Intent(context, Home.class);
Log.i("next23", "next");
context.startActivity(next);
}
});
return convertView;
}
static class ViewHolder {
public Button btnList;
public TextView text8;
public TextView text7;
public TextView text6;
public TextView text5;
public TextView text4;
public TextView text1;
public TextView text2;
public TextView text3;
}
@Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
}
public int getPositionForSection(int section) {
// sorting the patientListArray data
sortMyData();
// If there is no item for current section, previous section will be
// selected
for (int i = section; i >= 0; i--) {
for (int j = 0; j < getCount(); j++) {
if (i == 0) {
// For numeric section
for (int k = 0; k <= 9; k++) {
if (StringMatcher.match(
String.valueOf(patientListArray.get(j)
.getName().charAt(0)),
String.valueOf(k)))
return j;
}
} else {
if (StringMatcher.match(
String.valueOf(patientListArray.get(j).getName()
.charAt(0)),
String.valueOf(mSections.charAt(i))))
return j;
}
}
}
return 0;
}
public int getSectionForPosition(int position) {
return 0;
}
public Object[] getSections() {
String[] sections = new String[mSections.length()];
for (int i = 0; i < mSections.length(); i++)
sections[i] = String.valueOf(mSections.charAt(i));
return sections;
}
}
回答1:
In your Efficient adapter class declare ViewHolder holder outside getView method
and do as MoshErsan said.
Also Change your
convertView = mInflater.inflate(R.layout.homemplebrowview, null);
to
convertView = mInflater.inflate(R.layout.homemplebrowview, parent,false);
回答2:
The problem is in onInterceptTouchEvent method. You are using IndexableListView from woozzu, and this class overrides onInterceptTouchEvent to return true. This means that IndexableListView always steal touch events from your child's views so it can provide it to IndexScroller. You can change this behavior if instead of returning true you enter this condition:
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (mScroller != null && mScroller.contains(ev.getX(), ev.getY()))
return true;
return super.onInterceptTouchEvent(ev);
}
This way only events meant to interact with IndexScroller will be consumed. Other events will be propagated to children's views, and your button will be clickable.
回答3:
in your adapter, just move
holder.btnList.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(context, "STAT", Toast.LENGTH_SHORT).show();
Intent next = new Intent(context, Home.class);
Log.i("next23", "next");
context.startActivity(next);
}
});
just before return convertView;
you need to set the listener every time the adapter returns a view.
来源：https://stackoverflow.com/questions/12622028/onclick-button-is-not-working-in-listview