Android圖庫只顯示三張圖片

Question

產品圖的應用程序的位置：http://imgur.com/6A92Yl6

所以我已經設置了在一點擊中的畫廊，用戶可以選擇從視角的圖片，然後看到的圖片及其相應的爲它烤麪包。

問題是，只有三個圖像彈出。我不知道爲什麼，也沒有限制畫廊的變數，所以我不知所措。

我的主：

public class MainActivity<View> extends Activity 
{ 

ImageView selectedImage; 
private Integer[] mImageIds = { 
      R.drawable.image1, 
      R.drawable.image2, 
      R.drawable.image3, 
      R.drawable.image4, 
      R.drawable.image5, 
      R.drawable.image6, 
      R.drawable.image7, 
      R.drawable.image8, 
      R.drawable.image9, 
      R.drawable.image10 
    }; 
@Override 
public void onCreate(Bundle savedInstanceState) 
{ 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 

     Gallery gallery = (Gallery) findViewById(R.id.gallery1); 
    selectedImage=(ImageView)findViewById(R.id.imageView1); 
    gallery.setSpacing(1); 
    gallery.setAdapter(new GalleryImageAdapter(this)); 

    gallery.setOnItemClickListener(new OnItemClickListener() { 
     public void onItemClick(AdapterView<?> parent, View v, int position, long id) { 
      Toast.makeText(MainActivity.this, "THIS TEXT SHOULD NEVER SHOW = " + position, Toast.LENGTH_SHORT).show(); 
      // show the selected Image 
      selectedImage.setImageResource(mImageIds[position]); 
     } 

     @Override 
     public void onItemClick(AdapterView<?> parent, android.view.View v, int position, long id) { 
      Toast.makeText(MainActivity.this, "Picture Number: " + position, Toast.LENGTH_SHORT).show(); 
      // show the selected Image 
      selectedImage.setImageResource(mImageIds[position]); 

     } 
    }); 
} 
} 

---

我的XML：

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

<Gallery 
    android:id="@+id/gallery1" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" /> 

<ImageView 
    android:id="@+id/imageView1" 
    android:layout_width="wrap_content" 
    android:layout_height="350dp" 
    android:layout_gravity="center_horizontal" 
    android:layout_marginTop="100dp" 
    android:layout_weight="0.13" 
    android:src="@drawable/image1" /> 

</LinearLayout> 

Answer 1

我想你忘記了創建新GalleryImageAdapter時填充mImageIds適配器。

Answer 2

您需使用適配器：

1. 適配器更改呼叫：

   gallery.setAdapter（新GalleryImageAdapter（這一點，mImageIds））;

2. 添加/更新GalleryImageAdapter.java：

   import java.util.List; 
   
   import android.app.Activity; 
   import android.graphics.drawable.Drawable; 
   import android.view.View; 
   import android.view.ViewGroup; 
   import android.widget.BaseAdapter; 
   import android.widget.Gallery; 
   import android.widget.ImageView; 
   
   public class GalleryImageAdapter extends BaseAdapter { 
   
   private Activity context; 
   
   private static ImageView imageView; 
   
   private List<Drawable> plotsImages; 
   
   private static ViewHolder holder; 
   
   public GalleryImageAdapter(Activity context, List<Drawable> plotsImages) { 
   
   this.context = context; 
   this.plotsImages = plotsImages; 
   
   } 
   
   @Override 
   public int getCount() { 
       return plotsImages.size(); 
   } 
   
   @Override 
   public Object getItem(int position) { 
       return null; 
   } 
   
   @Override 
   public long getItemId(int position) { 
       return 0; 
   } 
   
   @Override 
   public View getView(int position, View convertView, ViewGroup parent) { 
   
       if (convertView == null) { 
   
       holder = new ViewHolder(); 
   
       imageView = new ImageView(this.context); 
   
       imageView.setPadding(3, 3, 3, 3); 
   
       convertView = imageView; 
   
       holder.imageView = imageView; 
   
       convertView.setTag(holder); 
   
   } else { 
   
       holder = (ViewHolder) convertView.getTag(); 
   } 
   
   holder.imageView.setImageDrawable(plotsImages.get(position)); 
   
   holder.imageView.setScaleType(ImageView.ScaleType.FIT_XY); 
   holder.imageView.setLayoutParams(new Gallery.LayoutParams(150, 90)); 
   
   return imageView; 
   } 
   
   private static class ViewHolder { 
       ImageView imageView; 
   } 
   
   }