GridView中动态添加多个按钮

Question

任何人都可以告诉我在Grid-View项目中动态设置按钮数的方法。我的意思是，假设我有3X3的grid-view（由不同产品的类别组成），当我点击它的第一个项目，我第一次获取网格视图中的子产品按钮列表，并且根据子产品的可用性，每个项目的编号都不相同。

网格视图项目中显示的按钮列表可能会有所不同的每个项目click.I是新到Android所以任何帮助将不胜感激

这里是我的适配器的XML： -

<?xml version="1.0" encoding="utf-8"?> 
 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 
    android:layout_width="match_parent" 
 
    android:layout_height="wrap_content" 
 
    android:gravity="center" 
 
    android:orientation="horizontal" > 
 

 
    <LinearLayout 
 
     android:layout_width="match_parent" 
 
     android:layout_height="wrap_content" 
 
     android:orientation="vertical" > 
 

 
     <LinearLayout 
 
      android:layout_width="match_parent" 
 
      android:layout_height="wrap_content" 
 
      android:gravity="center" 
 
      android:orientation="vertical" > 
 

 
      <com.mss.skyjack.custom.views.SkyjackCustomTextview 
 
       android:id="@+id/tv_product" 
 
       android:layout_width="wrap_content" 
 
       android:layout_height="wrap_content" 
 
       android:drawablePadding="5dp" 
 
       android:gravity="center" 
 
       android:text="@string/product" 
 
       android:textAppearance="?android:attr/textAppearanceMedium" 
 
       android:textColor="@color/black_color" /> 
 

 
      <ImageView 
 
       android:id="@+id/img_product" 
 
       android:layout_width="wrap_content" 
 
       android:layout_height="wrap_content" 
 
       android:layout_marginTop="60dp" 
 
       android:src="@drawable/ic_launcher" /> 
 

 
      
 

 
       <LinearLayout 
 
        android:id="@+id/lnr_test" 
 
        android:layout_width="match_parent" 
 
        android:layout_height="wrap_content" 
 
        android:layout_marginLeft="30dp" 
 
        android:layout_marginRight="30dp" 
 
        android:layout_marginTop="30dp" 
 
        android:orientation="vertical"     android:visibility="gone"> 
 
       </LinearLayout> 
 
      
 
     </LinearLayout> 
 

 
     <View 
 
      android:layout_width="match_parent" 
 
      android:layout_height="1dp" 
 
      android:background="#000000" /> 
 
    </LinearLayout> 
 

 
    <View 
 
     android:id="@+id/view_right_line" 
 
     android:layout_width="3dp" 
 
     android:layout_height="match_parent" 
 
     android:background="#000000" /> 
 

 
</LinearLayout>

这里是我的适配器类： -

public class ProductSelectorAdapter extends BaseAdapter { 
 

 
\t Activity activity; 
 
\t List<SelectorTest> listSelector; 
 
\t private Button btn; 
 
\t List<catagoriesListModal> _categories; 
 

 
\t public ProductSelectorAdapter(Activity activity, 
 
\t \t \t List<SelectorTest> listSelector) { 
 
\t \t this.activity = activity; 
 
\t \t this.listSelector = listSelector; 
 
\t } 
 

 
\t @Override 
 
\t public int getCount() { 
 
\t \t return listSelector.size(); 
 
\t } 
 

 
\t @Override 
 
\t public SelectorTest getItem(int position) { 
 
\t \t return listSelector.get(position); 
 
\t } 
 

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

 
\t @Override 
 
\t public View getView(int position, View convertView, ViewGroup parent) { 
 
\t \t final ViewHolder viewHolder; 
 
\t \t _categories = listSelector.get(position).getCategories(); 
 
\t \t if (convertView == null) { 
 
\t \t \t LayoutInflater inflater = (LayoutInflater) activity 
 
\t \t \t \t \t .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
 
\t \t \t convertView = inflater.inflate(R.layout.selector_items, parent, 
 
\t \t \t \t \t false); 
 
\t \t \t viewHolder = new ViewHolder(); 
 
\t \t \t viewHolder.tvProductName = (TextView) convertView 
 
\t \t \t \t \t .findViewById(R.id.tv_product); 
 
\t \t \t viewHolder.imgView = (ImageView) convertView 
 
\t \t \t \t \t .findViewById(R.id.img_product); 
 
\t \t \t viewHolder.viewRightLine = (View) convertView 
 
\t \t \t \t \t .findViewById(R.id.view_right_line); 
 
\t \t \t viewHolder.lnrLayout = (LinearLayout) convertView 
 
\t \t \t \t \t .findViewById(R.id.lnr_test); 
 

 
\t \t \t convertView.setTag(viewHolder); 
 

 
\t \t } else { 
 
\t \t \t viewHolder = (ViewHolder) convertView.getTag(); 
 
\t \t } 
 
\t \t if (!activity.getResources().getBoolean(R.bool.landscape_only)) { 
 
\t \t \t if (position % 2 != 0) { 
 
\t \t \t \t viewHolder.viewRightLine.setVisibility(View.GONE); 
 
\t \t \t } else { 
 
\t \t \t \t viewHolder.viewRightLine.setVisibility(View.VISIBLE); 
 
\t \t \t } 
 
\t \t } else { 
 
\t \t \t if (position % 3 != 0 & position % 3 != 1) { 
 
\t \t \t \t viewHolder.viewRightLine.setVisibility(View.GONE); 
 
\t \t \t } else { 
 
\t \t \t \t viewHolder.viewRightLine.setVisibility(View.VISIBLE); 
 
\t \t \t } 
 
\t \t } 
 

 
\t \t SelectorTest selectorTest = listSelector.get(position); 
 
\t \t viewHolder.tvProductName.setText(selectorTest.getName()); 
 
\t \t viewHolder.imgView.setImageResource(selectorTest.getImage()); 
 
\t \t viewHolder.imgView.setOnClickListener(new OnClickListener() { 
 

 
\t \t \t @Override 
 
\t \t \t public void onClick(View v) { 
 
\t \t \t \t if (activity.getResources().getBoolean(R.bool.landscape_only)) { 
 
\t \t \t \t \t viewHolder.lnrLayout.setVisibility(View.VISIBLE); 
 
\t \t \t \t \t viewHolder.imgView.setVisibility(View.GONE); 
 

 
\t \t \t \t \t for (int i = 0; i < _categories.size(); i++) { 
 

 
\t \t \t \t \t \t btn = new Button(activity); 
 
\t \t \t \t \t \t btn.setText(_categories.get(i).getName()); 
 

 
\t \t \t \t \t \t viewHolder.lnrLayout.addView(btn); 
 
\t \t \t \t \t \t int idx = viewHolder.lnrLayout.indexOfChild(btn); 
 
\t \t \t \t \t \t btn.setTag(Integer.toString(idx)); 
 

 
\t \t \t \t \t \t btn.setOnClickListener(new OnClickListener() { 
 

 
\t \t \t \t \t \t \t @Override 
 
\t \t \t \t \t \t \t public void onClick(View v) { 
 
\t \t \t \t \t \t \t \t String idxStr = (String) v.getTag(); 
 
\t \t \t \t \t \t \t \t Toast.makeText(activity, idxStr, 
 
\t \t \t \t \t \t \t \t \t \t Toast.LENGTH_SHORT).show(); 
 

 
\t \t \t \t \t \t \t } 
 
\t \t \t \t \t \t }); 
 
\t \t \t \t \t } 
 
\t \t \t \t } else { 
 
\t \t \t \t \t Session.ChangeFragmentWithBack(new ProductDetailFragment(), 
 
\t \t \t \t \t \t \t "ProductDetailFragment", "ProductDetailFragment", 0); 
 
\t \t \t \t } 
 

 
\t \t \t } 
 
\t \t }); 
 

 
\t \t return convertView; 
 
\t } 
 

 
\t static class ViewHolder { 
 
\t \t TextView tvProductName, tvTest; 
 
\t \t ImageView imgView; 
 
\t \t View viewRightLine; 
 
\t \t ListView lstroduct; 
 
\t \t ScrollView scrlLstItems; 
 
\t \t LinearLayout lnrLayout; 
 
\t \t Button btn1, btn2, btn3; 
 
\t }

这里是我SelectorTest模型类： -

import java.util.List; 
 

 

 

 
public class SelectorTest { 
 
\t int id; 
 
\t String name; 
 
\t int image; 
 
\t List<catagoriesListModal> categories; 
 

 
\t public int getId() { 
 
\t \t return id; 
 
\t } 
 

 
\t public void setId(int id) { 
 
\t \t this.id = id; 
 
\t } 
 

 
\t public String getName() { 
 
\t \t return name; 
 
\t } 
 

 
\t public void setName(String name) { 
 
\t \t this.name = name; 
 
\t } 
 

 
\t public int getImage() { 
 
\t \t return image; 
 
\t } 
 

 
\t public void setImage(int image) { 
 
\t \t this.image = image; 
 
\t } 
 

 
\t public List<catagoriesListModal> getCategories() { 
 
\t \t return categories; 
 
\t } 
 

 
\t public void setCategories(List<catagoriesListModal> categories) { 
 
\t \t this.categories = categories; 
 
\t } 
 

 
}

这里是我catagoriesListModal类： -

public class catagoriesListModal { 
 
\t String name; 
 
\t int id; 
 

 
\t public String getName() { 
 
\t \t return name; 
 
\t } 
 

 
\t public void setName(String name) { 
 
\t \t this.name = name; 
 
\t } 
 

 
\t public int getId() { 
 
\t \t return id; 
 
\t } 
 

 
\t public void setId(int id) { 
 
\t \t this.id = id; 
 
\t } 
 

 
}

谢谢

Answer 1

您的方法是正确的，但您的模型本身并没有考虑到类别。 修改你的模型到下面。

import java.util.List; 


public class SelectorTest { 
int id; 
String name; 
int image; 
List<String> categories; 


public int getId() { 
    return id; 
} 

public void setId(int id) { 
    this.id = id; 
} 



public String getName() { 
    return name; 
} 

public void setName(String name) { 
    this.name = name; 
} 

public int getImage() { 
    return image; 
} 

public void setImage(int image) { 
    this.image = image; 
} 

public List<String> getCategories() { 
    return categories; 
} 

public void setCategories(List<String> categories) { 
    this.categories = categories; 
} 
} 

现在修改您的适配器类相应

public class ProductSelectorAdapter extends BaseAdapter { 

Activity activity; 
List<SelectorTest> listSelector; 
private Button btn; 

public ProductSelectorAdapter(Activity activity, 
           List<SelectorTest> listSelector) { 
    this.activity = activity; 
    this.listSelector = listSelector; 

} 

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

@Override 
public SelectorTest getItem(int position) { 
    return listSelector.get(position); 
} 

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

@Override 
public View getView(final int position, View convertView, ViewGroup parent) { 
    final ViewHolder viewHolder; 
    if (convertView == null) { 
     LayoutInflater inflater = (LayoutInflater) activity 
       .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     convertView = inflater.inflate(R.layout.selector_items, parent, 
       false); 
     viewHolder = new ViewHolder(); 
     viewHolder.tvProductName = (TextView) convertView 
       .findViewById(R.id.tv_product); 
     viewHolder.imgView = (ImageView) convertView 
       .findViewById(R.id.img_product); 
     viewHolder.viewRightLine = (View) convertView 
       .findViewById(R.id.view_right_line); 
     viewHolder.lnrLayout = (LinearLayout) convertView 
       .findViewById(R.id.lnr_test); 

     convertView.setTag(viewHolder); 

    } else { 
     viewHolder = (ViewHolder) convertView.getTag(); 
    } 
    if (!activity.getResources().getBoolean(R.bool.landscape_only)) { 
     if (position % 2 != 0) { 
      viewHolder.viewRightLine.setVisibility(View.GONE); 
     } else { 
      viewHolder.viewRightLine.setVisibility(View.VISIBLE); 
     } 
    } else { 
     if (position % 3 != 0 & position % 3 != 1) { 
      viewHolder.viewRightLine.setVisibility(View.GONE); 
     } else { 
      viewHolder.viewRightLine.setVisibility(View.VISIBLE); 
     } 
    } 

    SelectorTest selectorTest = listSelector.get(position); 
    viewHolder.tvProductName.setText(selectorTest.getName()); 
    viewHolder.imgView.setImageResource(selectorTest.getImage()); 


    convertView.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      if (activity.getResources().getBoolean(R.bool.landscape_only)) { 

       viewHolder.lnrLayout.setVisibility(View.VISIBLE); 
       viewHolder.imgView.setVisibility(View.GONE); 
       List<String> _categories = listSelector.get(position).getCategories(); 
       for (int i = 0; i < _categories.size(); i++) { 

        btn = new Button(activity); 
        btn.setText(_categories.get(i)); 
        viewHolder.lnrLayout.addView(btn); 
        int idx = viewHolder.lnrLayout.indexOfChild(btn); 
        btn.setTag(Integer.toString(idx)); 
       } 
       btn.setOnClickListener(new OnClickListener() { 

        @Override 
        public void onClick(View v) { 
         String idxStr = (String) v.getTag(); 
         Toast.makeText(activity, idxStr, Toast.LENGTH_SHORT).show(); 

        } 
       }); 

      } 
     } 
    }); 

    return convertView; 
} 

static class ViewHolder { 
    TextView tvProductName, tvTest; 
    ImageView imgView; 
    View viewRightLine; 
    ListView lstroduct; 
    ScrollView scrlLstItems; 
    LinearLayout lnrLayout; 

} 
} 

你必须看到，我已经改变了可变位置，最终的决定。（只是为了更快的响应），如果你不想说。 您可以创建一个自定义的View.OnclickListener，它将位置作为参数。像这样

class MyOwnClickListener implements OnClickListener { 
    int position; 

    public MyOwnClickListener(int position) { 
     this.position = position; 
    } 

    @Override 
    public void onClick(View v) { 
.... 

，并为您的convertView然后你可以使用

convertView.setOnClickListener(new MyOwnClickListener(position) { 

如果存在任何疑问都伸手。 感谢

更新

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/scrollView" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:fillViewport="true" > 
    <LinearLayout 
       android:id="@+id/lnr_test" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:layout_marginLeft="30dp" 
       android:layout_marginRight="30dp" 
       android:layout_marginTop="30dp" 
       android:orientation="vertical"      android:visibility="gone"> 
      </LinearLayout> 
    </ScrollView>