搜索功能在Android中的列表視圖中查看

Question

我很新的android。我正在嘗試使用arrayadapter在項目列表上開發搜索功能，如下所示。但搜索無法正常工作。 PLZ plz幫助我

這裏是我的代碼..

AddToOutlet.java 
     public class AddToOutlet extends Activity { 
     SessionManager session; 
     String success, cus_id, bus_id, cus_outlet; 
     ArrayList<Item> item; 
     com.amplio.MyCustomEditText editsearch; 

// TextView tvcountoutlet; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.addtooutlet); 
    session = new SessionManager(getApplicationContext()); 
    session.checkLoginback(); 

    item = new ArrayList<Item>(); 
    // get user data from session 
    HashMap<String, String> user = session.getUserDetails(); 
    // ID 
    final String cus_id = user.get(SessionManager.KEY_ID); 


    ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>(); 
    postParameters.add(new BasicNameValuePair("cus_id", cus_id)); 
    String response = null; 
    try { 
     response = LoginHttpClient 
       .executeHttpPost(
         "http://10.0.2.2/android_api/add_to_outlet.php", 
         postParameters); 
     response = response.toString(); 
     response = response.replaceAll("\\s+", ""); 
     JSONObject json = new JSONObject(response); 
     JSONArray jArray = json.getJSONArray("customer"); 
     for (int i = 0; i < jArray.length(); i++) { 
      JSONObject json_data = jArray.getJSONObject(i); 
      Item it = new Item(); 
      success = json_data.getString("success"); 
      it.setBusname(json_data.getString("bus_name")); 
      it.setBusid(json_data.getString("bus_id")); 
      it.setCusId(cus_id); 
      item.add(it); 
     } 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 

    ListView lv = (ListView) findViewById(R.id.list); 
    final MyAdapter adapter = new MyAdapter(AddToOutlet.this, 
      R.layout.addtooutlet_list_item, item); 
    lv.setAdapter(adapter); 

    // Locate the EditText in listview_main.xml 
    editsearch = (com.amplio.MyCustomEditText) findViewById(R.id.EditText01); 

    // Capture Text in EditText 
    editsearch.addTextChangedListener(new TextWatcher() { 

     @Override 
     public void afterTextChanged(Editable arg0) { 
      // TODO Auto-generated method stub 
      String text = editsearch.getText().toString() 
        .toLowerCase(Locale.getDefault()); 
      adapter.filter(text); 
     } 

     @Override 
     public void beforeTextChanged(CharSequence arg0, int arg1, 
       int arg2, int arg3) { 
      // TODO Auto-generated method stub 
     } 

     @Override 
     public void onTextChanged(CharSequence arg0, int arg1, int arg2, 
       int arg3) { 
      // TODO Auto-generated method stub 
     } 
    }); 

} 
} 

這裏是MyAdapter.java

 public class MyAdapter extends ArrayAdapter<Item> { 
    ArrayList<Item> item; 
    LayoutInflater mInflater; 
    Context context; 
    private List<Item> item1 = null; 

public MyAdapter(Context context, int resource, ArrayList<Item> item) { 
    super(context, resource, item); 
    this.item = item; 
    this.context = context; 
    mInflater = LayoutInflater.from(context); 

} 

@Override 
public int getCount() { 
    return item.size(); 
} 

@Override 
public Item getItem(int position) { 
    return item.get(position); 
} 

@Override 
public long getItemId(int position) { 
    return position; 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 
    final ViewHolder holder; 
    if (convertView == null) { 
     holder = new ViewHolder(); 
     convertView = mInflater.inflate(R.layout.addtooutlet_list_item, 
       parent, false); 
     holder.tv1 = (TextView) convertView.findViewById(R.id.item_bname); 
     holder.tv2 = (TextView) convertView.findViewById(R.id.item_bid); 
     holder.tv3 = (TextView) convertView.findViewById(R.id.item_cid); 
     holder.b = (Button) convertView.findViewById(R.id.item_button); 
     convertView.setTag(holder); 
    } else { 
     holder = (ViewHolder) convertView.getTag(); 
    } 
    Item it = item.get(position); 
    holder.tv1.setText(it.getBusname()); 
    holder.tv2.setText(it.getBusid()); 
    holder.tv3.setText(it.getCusId()); 
    holder.b.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      // String Text1_value = holder.tv1.getText().toString(); 
      // System.out.println(Text1_value); 
      String bid = holder.tv2.getText().toString(); 
      System.out.println(bid); 
      String cid = holder.tv3.getText().toString(); 
      System.out.println(cid); 
      holder.b.setText("Joined"); 
      holder.b.setTextColor(Color.parseColor("#ffffff")); 
      holder.b.setTextSize(10); 
      // holder.b.setText("joined"); 
      // Toast.makeText(context, "Join button Clicked", 
      // Toast.LENGTH_LONG).show(); 
      ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>(); 
      postParameters.add(new BasicNameValuePair("cus_id", cid)); 
      postParameters.add(new BasicNameValuePair("bus_id", bid)); 
      String response = null; 
      try { 
       response = LoginHttpClient 
         .executeHttpPost(
           "http://10.0.2.2/android_api/update_outlet.php", 
           postParameters); 
       String res = response.toString(); 
       res = res.replaceAll("\\s+", ""); 
       int resInt = Integer.parseInt(res); 
       if (resInt == 1) { 
       } else { 
       } 
      } catch (Exception e) { 
      } 
     } 
    }); 
    return convertView; 
} 

static class ViewHolder { 
    Button b; 
    TextView tv1, tv2, tv3; 
} 

public void filter(String charText) { 
    charText = charText.toLowerCase(Locale.getDefault()); 
    item.clear(); 
    if (charText.length() == 0) { 
     item.addAll(item); 
    } else { 
     for (Item wp : item) { 
      if (wp.getBusname().toLowerCase(Locale.getDefault()) 
        .contains(charText)) { 
       item.add(wp); 
      } 
     } 
    } 
    notifyDataSetChanged(); 
} 
    } 

這裏是Item.java

public class Item { 

String busname, busid, cus_id; 

public String getBusname() { 
    return busname; 
} 

public void setBusname(String busname) { 
    this.busname = busname; 
} 

public String getBusid() { 
    return busid; 
} 

public void setBusid(String busid) { 
    this.busid = busid; 
} 

public String getCusId() { 
    return cus_id; 
} 

public void setCusId(String cus_id) { 
    this.cus_id = cus_id; 
} 
    } 

這裏是addtooutlet.xml

  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
      android:layout_width="match_parent" 
      android:layout_height="match_parent" 
      android:background="#ffffff" 
      android:orientation="vertical" > 

     <!-- Editext for Search --> 

     <RelativeLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginBottom="1dp" 
      android:layout_marginLeft="10dp" 
      android:background="#ffffff" > 

      <com.amplio.MyCustomEditText 
       android:id="@+id/EditText01" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_gravity="center" 
       android:layout_marginLeft="10dp" 
       android:layout_marginRight="40dp" 
       android:background="#00000000" 
       android:ems="20" 
       android:hint="@string/search" 
       android:lineSpacingExtra="5dp" 
       android:textSize="12sp" > 
      </com.amplio.MyCustomEditText> 
     </RelativeLayout> 

     <RelativeLayout 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_marginLeft="10dp" 
      android:layout_marginRight="10dp" 
      android:background="#eeeeee" > 

      <ListView 
       android:id="@+id/list" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_weight="1" 
       android:drawSelectorOnTop="false" /> 
     </RelativeLayout> 
    </LinearLayout> 

這裏是我的addtooutlet_list_item.xml

  <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:layout_width="match_parent" 
     android:layout_height="46dp" 
      android:background="#ffffff" 
     android:padding="5dip" 
     android:weightSum="100" > 

    <TextView 
     android:id="@+id/item_bname" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_weight="20" 
     android:padding="2dp" 
     android:text="Hello" 
     android:textAppearance="?android:attr/textAppearanceMedium" 
     android:textColor="#000000" 
     android:textSize="12dip" /> 

    <TextView 
     android:id="@+id/item_bid" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_weight="20" 
     android:padding="2dp" 
     android:text="Hello" 
     android:textAppearance="?android:attr/textAppearanceMedium" 
     android:textColor="#000000" 
     android:textSize="12dip" 
     android:visibility="invisible" /> 

    <TextView 
     android:id="@+id/item_cid" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_weight="20" 
     android:padding="2dp" 
     android:text="Hello" 
     android:textAppearance="?android:attr/textAppearanceMedium" 
     android:textColor="#000000" 
     android:textSize="12dip" 
     android:visibility="invisible" /> 

    <Button 
     android:id="@+id/item_button" 
     android:layout_width="31dp" 
     android:layout_height="31dp" 
     android:layout_alignParentBottom="true" 
     android:layout_alignParentRight="true" 
     android:layout_alignTop="@+id/item_bname" 
     android:background="@drawable/circle" 
     android:focusable="false" 
     android:focusableInTouchMode="false" 
     android:text="join" 
     android:textColor="#ffffff" 
     android:textSize="10sp" /> 
</RelativeLayout> 

Answer 1

嘗試做這樣的。希望它會幫助你...

editsearch.addTextChangedListener(new TextWatcher() { 

    @Override 
    public void afterTextChanged(Editable arg0) { 
     // TODO Auto-generated method stub 
    } 

    @Override 
    public void beforeTextChanged(CharSequence arg0, int arg1, 
      int arg2, int arg3) { 
     // TODO Auto-generated method stub 
    } 

    @Override 
    public void onTextChanged(CharSequence arg0, int arg1, int arg2, 
      int arg3) { 
     // TODO Auto-generated method stub 
     editsearch.requestFocus(); 
     final ArrayList<Item> itemArray = new ArrayList<Item>(); 
     int textlength = 0; 
     textlength = editsearch.getText().length(); 
     itemArray.clear(); 
     for (int i = 0; i < item.size(); i++) 
     { 
      String itemTitle = item.get(i).name(); 
      String compareItemTitle = ""; 
      if (textlength <= item.length()) 
      { 
       compareItemTitle = (String) itemTitle.toLowerCase().subSequence(0, textlength); 
       if(compareItemTitle.contentEquals(editsearch.getText().toString().toLowerCase())) 
       { 
        itemArray.add(item.get(i)); 
       } 
      } 
     } 
     adapter = new MyAdapter(AddToOutlet.this, R.layout.addtooutlet_list_item, itemArray); 
     lv.setAdapter(adapter); 
} 

    } 
}); 

Answer 2

嘗試這種方式，這正是你要找的

@Override 
    public boolean onCreateOptionsMenu(Menu menu) { 

     // adds item to action bar 
     getMenuInflater().inflate(R.menu.search_main, menu); 

     // Get Search item from action bar and Get Search service 
     MenuItem searchItem = menu.findItem(R.id.action_search); 
     SearchManager searchManager = (SearchManager) MainActivity.this.getSystemService(Context.SEARCH_SERVICE); 
     if (searchItem != null) { 
      searchView = (SearchView) searchItem.getActionView(); 
     } 
     if (searchView != null) { 
      searchView.setSearchableInfo(searchManager.getSearchableInfo(MainActivity.this.getComponentName())); 
      searchView.setIconified(false); 
     } 

     return true; 
    } 

http://androidcss.com/android/android-search-view-php-mysql/

http://androidcss.com/android/fetch-json-data-android/