本文介绍了onclick 按钮在列表视图中不起作用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着跟版网的小编来一起学习吧！
问题描述
我的项目包含 listView(homelistView)，其中包含 button(btnList).
My project contains listView(homelistView) that contains button(btnList).
当我点击 button(btnList) 时，它必须转到另一个 Activity.我尝试了很多，但我没有找到一个很好的例子.
When I click on button(btnList) it must go to another Activity. I tried a lot but I didn't find a good example.
请给我一个很好的例子.
Please suggest me a good example regarding this.
下面是我的代码:
这是我的列表视图包含按钮.单击按钮时，它必须转到其他活动
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
homempleb.xml
在我在 xml 中使用此代码之前.根据下面的代码，按钮列表对我来说很好
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
homempleb.xml
目前我在我的列表视图中添加了滚动索引并更改了代码如下.. Listbutton 现在不适合我.. 请帮助我你可以在 EfficientAdapter.JAVA 中查看快速参考代码-----> getview方法--->holder.btnList.
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
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
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;
}
}
推荐答案
在你的 Efficient 适配器类中声明 ViewHolder holder 在 getView 方法之外并按照 MoshErsan 所说的去做.
In your Efficient adapter class declare ViewHolder holder outside getView method
and do as MoshErsan said.
也改变你的
convertView = mInflater.inflate(R.layout.homemplebrowview, null);
到
convertView = mInflater.inflate(R.layout.homemplebrowview, parent,false);
这篇关于onclick 按钮在列表视图中不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！
本站部分内容来源互联网,如果有图片或者内容侵犯了您的权益，请联系我们，我们会在确认后第一时间进行删除！