具有快速滚动和字母部分索引的 Android ListView [英] Android ListView with fast scroll and alphabetical section index
本文介绍了具有快速滚动和字母部分索引的 Android ListView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小编来一起学习吧！
问题描述
如图所示，当触摸右侧字母面板上的字母时如何添加测试视图?请你帮助我好吗?下面是我的代码.
How to add testview when touching a letter on right alphabet panel as shown in images? Could you please help me? Below is my code.
详细来说，我正在寻找一个与下图完全相同的示例.目前我对数据进行了排序.当我单击右侧字母面板时，它会正确显示数据.但问题是当触摸右侧字母面板上的字母时，我需要显示他正在按的大尺寸字母，如图(E)所示.我该怎么做，你能帮帮我吗?提前谢谢！
In details, I am looking for an example exactly like below image. Currently I did the sorting of data. When I click on right alphabet panel it shows the data properly. But the problem is when touching a letter the right alphabet panel I need to show what letter he is pressing in large size shown in image(E). How can I do it, could you please help me? Thank you in advance!
// MainActivity.java
public class MainActivity extends Activity implements
SearchView.OnQueryTextListener,
SearchView.OnCloseListener {
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();
}
});
listView = (IndexableListView) findViewById(R.id.homelistView);
listView.setTextFilterEnabled(true);
listView.setFastScrollEnabled(true);
listView.setFastScrollAlwaysVisible(true);
objectAdapter = new EfficientAdapter(this);
listView.setAdapter(objectAdapter);
}
@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;
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);
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) {
ViewHolder holder;
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);
holder.btnList.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// Intent next=new Intent(context, SeviceDetails.class);
// context.startActivity(next);
}
});
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()));
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();
}
//@Override
public int getPositionForSection(int section) {
// 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;
}
//@Override
public int getSectionForPosition(int position) {
return 0;
}
//@Override
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
Hear 是你需要的一个很酷的例子 https://github.com/woozzu/IndexableListView
Hear is one cool example of what you need https://github.com/woozzu/IndexableListView
为了编译项目并摆脱韩文更新 StringMatcher 类
IN order to compile the project and get rid of korean text update the StringMatcher class
package com.woozzu.android.util;
public class StringMatcher {
public static boolean match(String value, String keyword) {
if (value == null || keyword == null)
return false;
if (keyword.length() > value.length())
return false;
int i = 0, j = 0;
do {
int vi = value.charAt(i);
int kj = keyword.charAt(j);
if (isKorean(vi) && isInitialSound(kj)) {
} else {
if (vi == kj) {
i++;
j++;
} else if (j > 0)
break;
else
i++;
}
} while (i < value.length() && j < keyword.length());
return (j == keyword.length())? true : false;
}
private static boolean isKorean(int i) {
return false;
}
private static boolean isInitialSound(int i) {
return false;
}
}
这篇关于具有快速滚动和字母部分索引的 Android ListView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IT屋！
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