WebViewとtextViewの画像を含むGridView？

Question

私のアンドロイドアプリで/私はそのようなsometrhingをしようとしているhttp://i56.tinypic.com/2ivno8l.jpg。画像を使ってグリッドビューを作成する方法やテキストビューを作成する方法を見つけました：http://www.bogotobogo.com/Android/android6ListViewSpinnerGridViewGalleryB.html#GridView しかし、イメージとテキストビューの処理方法もわかりません。誰でも助けてくれますか？

package com.MyGridView; 

import java.io.InputStream; 
import java.net.URI; 
import java.net.URL; 

import android.R.integer; 
import android.app.Activity; 
import android.content.Context; 
import android.graphics.Color; 
import android.graphics.drawable.Drawable; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.BaseAdapter; 
import android.widget.Button; 
import android.widget.CheckBox; 
import android.widget.GridView; 
import android.widget.ImageView; 
import android.widget.ListAdapter; 
import android.widget.TextView; 

public class ImageAdapter1 extends BaseAdapter { 

    private Context mContext; 

    private LayoutInflater inflater = null; 

    private Activity activity; 

    public ImageAdapter1(Context c) { 
     mContext = c; 
     inflater = (LayoutInflater) activity 
       .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    public int getCount() { 
     return filesnames.length; 
    } 

    public Object getItem(int position) { 
     return null; 
    } 

    public long getItemId(int position) { 
     return 0; 
    } 

    public class ViewHolder { 
     public TextView text; 
     public ImageView image; 
    } 

    // create a new ImageView for each item referenced by the Adapter 
    public View getView(int position, View convertView, ViewGroup parent) { 
     View vi = convertView; 
     ViewHolder holder; 
     if (convertView == null) { 
      vi = inflater.inflate(R.layout.item, null); 
      holder = new ViewHolder(); 
      holder.text = (TextView) vi.findViewById(R.id.text); 
      holder.image = (ImageView) vi.findViewById(R.id.image); 

      holder.image.setLayoutParams(new GridView.LayoutParams(85, 85)); 
      holder.image.setScaleType(ImageView.ScaleType.CENTER_CROP); 
      holder.image.setPadding(8, 8, 8, 8); 

     } else 
      holder = (ViewHolder) vi.getTag(); 

     holder.text.setText(WORLDCUP2010[position]); 
     holder.image.setImageResource(filesnames[position]); 

     return vi; 
    } 


    private Integer[] filesnames = { R.drawable.icon, R.drawable.icon, 
      R.drawable.icon, R.drawable.icon, R.drawable.icon, R.drawable.icon, 
      R.drawable.icon, R.drawable.icon, R.drawable.icon, R.drawable.icon, 
      R.drawable.icon, R.drawable.icon, R.drawable.icon, R.drawable.icon, 
      R.drawable.icon, R.drawable.icon, R.drawable.icon, R.drawable.icon 

    }; 

    static final String[] WORLDCUP2010 = new String[] { "Algeria", "Argentina", 
      "Australia", "Brazil", "Cote d'Ivoire", "Cameroon", "Chile", 
      "Costa Rica", "Denmark", "England", "France", "Germany", "Ghana", 
      "Greece", "Honduras", "Italy", "Japan", "Netherlands", 
      "New Zealand", "Nigeria", "North Korea", "Paraguay", "Portugal", }; 

}

と私はLogcatでこれを取得する：

おかげ..

は、私が試した

07-21 17:30:43.152: ERROR/AndroidRuntime(396): Uncaught handler: thread main exiting due to uncaught exception 
07-21 17:30:43.172: ERROR/AndroidRuntime(396): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.MyGridView/com.MyGridView.MyGridView}: java.lang.NullPointerException 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2496) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2512) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.app.ActivityThread.access$2200(ActivityThread.java:119) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1863) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.os.Handler.dispatchMessage(Handler.java:99) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.os.Looper.loop(Looper.java:123) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.app.ActivityThread.main(ActivityThread.java:4363) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at java.lang.reflect.Method.invokeNative(Native Method) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at java.lang.reflect.Method.invoke(Method.java:521) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at dalvik.system.NativeStart.main(Native Method) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396): Caused by: java.lang.NullPointerException 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at com.MyGridView.ImageAdapter1.<init>(ImageAdapter1.java:34) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at com.MyGridView.MyGridView.onCreate(MyGridView.java:23) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459) 
07-21 17:30:43.172: ERROR/AndroidRuntime(396):  ... 11 more 

Answer 1

ただのTextViewを含むカスタム・アダプターについての例については、Googleイメージビュー。

私はここに例が見つかりました： http://www.stealthcopter.com/blog/2010/09/android-creating-a-custom-adapter-for-gridview-buttonadapter/

編集：彼らは代わりからImageViews（またはボタン）を作成するレイアウトのインフレータを使用する例でhttp://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/List14.html ：

一つの良い例はefficientAdapterがここに見出されていますコンテキスト。