調整內部的ListView

Question

我需要基於條件來改變ImageView的單ImageView的，問題是，尺寸的ImageView只能通過ImageView.getLayoutParameters被改變（）。寬度/高度，這樣做會改變每個的寬度ListView中的項目。

是否有改變單一的ImageView大小的方法嗎？至於現在我找不到辦法。

Answer 1

你必須寫，如果其他條件

if(yourcondtion) 
{ 
setlayoutparams(); 
} 

else 
{ 
setoriginallayoutparams(); 
} 

Answer 2

這裏是我的自定義適配器。我可以通過將參數設置爲imageView來重新調整圖像大小。希望對你有幫助！

P.S最糟糕的是，通過這種方式，你必須創建每次您的看法！這比使用viewHolder更慢。

public class Adapter extends BaseAdapter { 

ArrayList<String> list = new ArrayList<String>(); 
Activity activity; 

public Adapter(Activity activity) { 
    this.activity = activity; 
    list.add("Item 1"); 
    list.add("Item 2"); 
    list.add("Item 3"); 
    list.add("Item 4"); 
    list.add("Item 5"); 
    list.add("Item 6"); 
} 

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

@Override 
public Object getItem(int i) { 
    return list.get(i); 
} 

@Override 
public long getItemId(int i) { 
    return 0; 
} 

@Override 
public View getView(int i, View convertView, ViewGroup viewGroup) { 


    LayoutInflater inflater = activity.getLayoutInflater(); 
    convertView = inflater.inflate(R.layout.adapter,null); 

    ImageView imageView = (ImageView) convertView.findViewById(R.id.imageView); 
    TextView textView = (TextView) convertView.findViewById(R.id.textView); 


    textView.setText(list.get(i)); 
    //Condition 
    if (i == 5) 
    { 
     setLayoutParams(imageView,40,40); 
    } 
    else { 
     setLayoutParams(imageView,70,70); 
    } 

    imageView.setImageDrawable(activity.getResources().getDrawable(R.drawable.ic_launcher)); 
    return convertView; 
} 



private View setLayoutParams(View view, int width, int height) 
{ 
    RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(width,height); 
    view.setLayoutParams(params); 
    return view; 
} 
}