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拡張可能なリストでxmlレイアウトを使用するには？

2011-10-25 21 views
2

こんにちは私はこのコードを使用してxmlファイルに接続しようとしているときに、この拡張可能なリストを持っています。拡張可能なリストでxmlレイアウトを使用するには？

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.directions); 
    // Set up our adapter 
    mAdapter = new MyExpandableListAdapter(); 
    setListAdapter(mAdapter); 
    registerForContextMenu(getExpandableListView()); 
}

このコードを使用すると、私はJavaファイル全体にリダイレクトするボタンを押すと強制終了します。

10-25：17：37：39.512：（完全なコードについては、以下をご覧ください） ログイン猫はこれを言うERROR/AndroidRuntime（547）： java.lang.RuntimeException：起動できません活動 ComponentInfo {コム.sammy.umass/com.sammy.umass.DirectionsScreenActivity}： java.lang.RuntimeException：あなたのコンテンツは、そのID属性 'android.R.id.list' 私はちょうど必要

ある ExpandableListViewを持っている必要がありますタイトルバーを削除し、背景画像を追加し、基本的にはそれほどかわいいです。

全コード：

package com.sammy.umass; 

import android.app.ExpandableListActivity; 
import android.content.Intent; 
import android.net.Uri; 
import android.os.Bundle; 
import android.view.ContextMenu; 
import android.view.Gravity; 
import android.view.MenuItem; 
import android.view.View; 
import android.view.ViewGroup; 
import android.view.ContextMenu.ContextMenuInfo; 
import android.widget.AbsListView; 
import android.widget.BaseExpandableListAdapter; 
import android.widget.ExpandableListAdapter; 
import android.widget.ExpandableListView; 
import android.widget.TextView; 
import android.widget.Toast; 
import android.widget.ExpandableListView.ExpandableListContextMenuInfo; 


public class DirectionsScreenActivity extends ExpandableListActivity { 
ExpandableListAdapter mAdapter; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.directions); 
    // Set up our adapter 
    mAdapter = new MyExpandableListAdapter(); 
    setListAdapter(mAdapter); 
    registerForContextMenu(getExpandableListView()); 
} 

@Override 
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { 
    //menu.setHeaderTitle("Sample menu"); 
    //menu.add(0, 0, 0, R.string.expandable_list_sample_action); 
} 

@Override 
public boolean onContextItemSelected(MenuItem item) { 
    ExpandableListContextMenuInfo info = (ExpandableListContextMenuInfo) item.getMenuInfo(); 

    String title = ((TextView) info.targetView).getText().toString(); 

    int type = ExpandableListView.getPackedPositionType(info.packedPosition); 
    if (type == ExpandableListView.PACKED_POSITION_TYPE_CHILD) { 
     int groupPos = ExpandableListView.getPackedPositionGroup(info.packedPosition); 
     int childPos = ExpandableListView.getPackedPositionChild(info.packedPosition); 
     Toast.makeText(this, title + ": Child " + childPos + " clicked in group " + groupPos, 
       Toast.LENGTH_SHORT).show(); 
     return true; 
    } else if (type == ExpandableListView.PACKED_POSITION_TYPE_GROUP) { 
     int groupPos = ExpandableListView.getPackedPositionGroup(info.packedPosition); 
     Toast.makeText(this, title + ": Group " + groupPos + " clicked", Toast.LENGTH_SHORT).show(); 
     return true; 
    } 

    return false; 
} 

/** 
* A simple adapter which maintains an ArrayList of photo resource Ids. 
* Each photo is displayed as an image. This adapter supports clearing the 
* list of photos and adding a new photo. 
* 
*/ 
public class MyExpandableListAdapter extends BaseExpandableListAdapter { 
    // Sample data set. children[i] contains the children (String[]) for groups[i]. 
    private String[] groups = { " Academic Buildings", " Residential Buildings", " Dining Commons", " All Buildings A-Z" }; 
    private String[][] children = { 
      //Academic Buildings 
      { "Agricultural Engineering Bldg", "Army ROTC Bldg", "Arnold House", "(Studio) Arts Building" }, 
      //Residence Halls 
      { "Baker Hall", "Brett Hall", "Brooks Hall", "Brown Hall","Butterfield Hall","Cance Hall","Cashin Hall","Chadboourne Hall", 
       "Coolidge Hall","Crabtree Hall","Crampton Hall","Dickinson Hall","Dwight Hall","Emerson Hall","Field Hall", 
       "Gorman Hall","Grayson Hall","Greenough Hall","Hamlin Hall","James Hall","John Adams Hall","John Quincy Adams Hall", 
       "Johnson Hall","Kennedy Hall","Knowlton Hall","Leach Hall","Lewis Hall","Lincoln Apts","Mackimmie Hall","Mary Lyon Hall", 
       "McNamara Hall","Melville Hall","Moore Hall","North Residence A","North Residence B","North Residence C","North Residence D", 
       "North Village Apts","Patterson Hall","Pierpont Hall","Prince Hall","Thatcher Hall","Thoreau Hall","Van Meter Hall", 
       "Washington Hall","Webster Hall","Wheeler Hall"}, 
      //Dining Commons 
      { "Berkshire", "Franklin","Hampden","Hampshire","Worcester" }, 
      { "Agricultural Engineering Bldg", "Army ROTC Bldg", "Arnold House", "(Studio) Arts Building" } 
    }; 

    public Object getChild(int groupPosition, int childPosition) { 
     return children[groupPosition][childPosition]; 
    } 

    public long getChildId(int groupPosition, int childPosition) { 
     return childPosition; 
    } 

    public int getChildrenCount(int groupPosition) { 
     return children[groupPosition].length; 
    } 

    public TextView getGenericView() { 
     // Layout parameters for the ExpandableListView 
     AbsListView.LayoutParams lp = new AbsListView.LayoutParams(
       ViewGroup.LayoutParams.MATCH_PARENT, 64); 

     TextView textView = new TextView(DirectionsScreenActivity.this); 
     textView.setLayoutParams(lp); 
     // Center the text vertically 
     textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT); 
     // Set the text starting position 
     textView.setPadding(36, 0, 0, 0); 
     return textView; 
    } 

    public View getChildView(final int groupPosition,final int childPosition, boolean isLastChild, 
      View convertView, ViewGroup parent) { 
     TextView textView = getGenericView(); 
     textView.setText(getChild(groupPosition, childPosition).toString()); 
     textView.setOnClickListener(new View.OnClickListener(){ 
      public void onClick(View view){ 
      Uri uriToOpen = getUriForView(groupPosition, childPosition); 
      Intent i = new Intent(Intent.ACTION_VIEW, uriToOpen); 
      startActivity(i); 
      } 

     private Uri getUriForView(int groupPosition, int childPosition) 
     { 
      //Academic Builds 
      //Residence Halls 
      if(groupPosition == 1 && childPosition == 0) 
       return Uri.parse("google.navigation:q=160+Clark+Hill+Road+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 1) 
       return Uri.parse("google.navigation:q=151+Infirmary+Way+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 2) 
       return Uri.parse("google.navigation:q=160+Infirmary+Way+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 3) 
       return Uri.parse("google.navigation:q=92+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 4) 
       return Uri.parse("google.navigation:q=171+Infirmary+Way+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 5) 
       return Uri.parse("google.navigation:q=191+Fearing+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 6) 
       return Uri.parse("google.navigation:q=112+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 7) 
       return Uri.parse("google.navigation:q=110+Orchard+Hill+Drive+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 8) 
       return Uri.parse("google.navigation:q=630+Massachusetts+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 9) 
       return Uri.parse("google.navigation:q=17+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 10) 
       return Uri.parse("google.navigation:q=256+Sunset+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 11) 
       return Uri.parse("google.navigation:q=151+Orchard+Hill+Drive+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 12) 
       return Uri.parse("google.navigation:q=41+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 13) 
       return Uri.parse("google.navigation:q=151+Southwest+Circle+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 14) 
       return Uri.parse("google.navigation:q=171+Orchard+Hill+Drive+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 15) 
       return Uri.parse("google.navigation:q=90+Butterfield+Terrace+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 16) 
       return Uri.parse("google.navigation:q=161+Orchard+Hill+Drive+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 17) 
       return Uri.parse("google.navigation:q=120+Orchard+Hill+Drive+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 18) 
       return Uri.parse("google.navigation:q=739+North+Pleasant+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 19) 
       return Uri.parse("google.navigation:q=660+Massachusetts+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 20) 
       return Uri.parse("google.navigation:q=161+Fearing+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 21) 
       return Uri.parse("google.navigation:q=171+Fearing+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 22) 
       return Uri.parse("google.navigation:q=380+Thatcher+Road+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 23) 
       return Uri.parse("google.navigation:q=42.38421349589919+-72.52963542938232"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 24) 
       return Uri.parse("google.navigation:q=691+North+Pleasant+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 25) 
       return Uri.parse("google.navigation:q=21+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 26) 
       return Uri.parse("google.navigation:q=340+Thatcher+Road+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 27) 
       return Uri.parse("google.navigation:q=341+Lincoln+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 28) 
       return Uri.parse("google.navigation:q=230+Sunset+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 29) 
       return Uri.parse("google.navigation:q=43+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 30) 
       return Uri.parse("google.navigation:q=102+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 31) 
       return Uri.parse("google.navigation:q=650+Massachusetts+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 32) 
       return Uri.parse("google.navigation:q=111+Southwest+Circle+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 33) 
       return Uri.parse("google.navigation:q=56+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 34) 
       return Uri.parse("google.navigation:q=58+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 35) 
       return Uri.parse("google.navigation:q=54+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 36) 
       return Uri.parse("google.navigation:q=52+Eastman+Lane+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 37) 
       return Uri.parse("google.navigation:q=990+North+Pleasant+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 38) 
       return Uri.parse("google.navigation:q=204+Sunset+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 39) 
       return Uri.parse("google.navigation:q=201+Fearing+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 40) 
       return Uri.parse("google.navigation:q=286+Sunset+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 41) 
       return Uri.parse("google.navigation:q=300+Thatcher+Road+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 42) 
       return Uri.parse("google.navigation:q=640+Massachusetts+Avenue+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 43) 
       return Uri.parse("google.navigation:q=180+Clark+Hil+Road+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 44) 
       return Uri.parse("google.navigation:q=181+Fearing+Street+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 45) 
       return Uri.parse("google.navigation:q=141+Orchard+Hill+Drive+Amherst+MA+01003"+"&mode=w"); 
      if(groupPosition == 1 && childPosition == 46) 
       return Uri.parse("google.navigation:q=171+Infirmary+Way+Amherst+MA+01003"+"&mode=w"); 
      //Dining Commons 
      //All Buildings 
      return null; 
     } 
     }); 

     return textView; 
    } 

    public Object getGroup(int groupPosition) { 
     return groups[groupPosition]; 
    } 

    public int getGroupCount() { 
     return groups.length; 
    } 

    public long getGroupId(int groupPosition) { 
     return groupPosition; 
    } 

    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, 
      ViewGroup parent) { 
     TextView textView = getGenericView(); 
     textView.setText(getGroup(groupPosition).toString()); 
     return textView; 
    } 

    public boolean isChildSelectable(int groupPosition, int childPosition) { 
     return true; 
    } 

    public boolean hasStableIds() { 
     return true; 
    } 



} 
}

XMLコード

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:orientation="vertical" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
> 
</LinearLayout>

出典

2011-10-25 Sammy Kumar

答えて

4

ExpandableListAdapterを使用して、供給XMLレイアウトはandroid.Rに設定id属性を持つことでExpandableListView要素を持っている必要があります。 id.list。あなたの問題はdirections.xmlレイアウトにあります。 directions.xmlにExpandableListView要素があり、id属性がandoird.R.id.listに設定されていることを確認してください。あなたのdirectoions.xmlでこれを実行する必要があります。

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:orientation="vertical" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
> 
     <ExpandableListView 
     android:id="@android:id/list" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"> 
     </ExpandableListView> 

</LinearLayout>

出典

2011-10-25 17:54:12

+0

はXMLコードを含むように編集されました！ありがとう！ –

+0

はうまく機能しました！ありがとう –

+0

は正式な目的のために編集されました。 @LalitPoptaniによって掲示されたコードを使用し、彼にクレジットのためのupvoteを与えた。 –

3

あなたは以下のようなXMLファイルにExpandableListView用アンドロイドの作り付けのIDを追加し、android:id="@+id/anyname"

 <ExpandableListView 
     android:id="@android:id/list" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"> 
     </ExpandableListView>
を使用して、独自で宣言するIDを削除する必要があります

出典

2011-10-25 17:57:30

+0

+1正確なコードを提供するために –

+0

ありがとう！期待どおりに動作します！ –

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