android：如何從列表視圖中銷燬項目

Question

我有一個Listview。每個項目都有多個字段，如標題，圖像，說明和圖像。我擴大了Baseadapter，因此填充了listview。任務是自我刪除該項目。即在秒數（給定時間）後從ListView中刪除項目

我試圖通過附加timer與項目，但它會拋出錯誤，而且我發現這不是正確的方法。請幫我解決這個問題。

讓說的數據如下

Title ¦ Description ¦ Image ¦ time 
alpha1 ¦ this is the description of alpha 1 ¦ images/abc.jpg ¦ 56858 
alpha2 ¦ this is the description of alpha 2 ¦ images/abc.jpg ¦ 63 
alpha3 ¦ this is the description of alpha 3 ¦ images/abc.jpg ¦ 3600 

這裏的項目有定秒後死亡（死亡從某種意義上說，它從列表中刪除）

Answer 1

比方說，你有一個指針到列表的對象。然後運行如下：

new Handler().postDelayed(new Runnable() { 

    @Override 
    public void run() { 
     myListViewArrayOfItems.remove(index); 
     myListViewAdapter.notifyDataSetChanged(); 
    } 
}, numberOfSeconds); 

而且你可以在適配器removeItem(final int index)您運行

myListViewArrayOfItems.remove(index); 
notifyDataSetChanged(); 

聲明的方法如果numberOfSeconds是隨機的和刪除操作需要可用於取消：

public class RemoveRunnable implements Runnable { 

    public interface RemoveListener { 
     void onItemRemoved(int index); 
    } 

    private BaseAdapter mAdapter; 
    private int mIndexToRemove; 
    private RemoveListener mListener; 

    public RemoveRunnable(BaseAdapter adapter, int index, RemoveListener listener) { 
     mAdapter = adapter; 
     mIndexToRemove = index; 
     mListener = listener; 
    } 

    public void run() { 
     mAdapter.removeItem(mIndexToRemove); 
     mListener.onItemRemoved(mIndexToRemove); 
    } 

    public void updateIndex(int removedIndex) { 
     if (removedIndex < mIndexToRemove) { 
      mIndexToRemove--; 
     } 
    } 
} 

與用法：

private Handler mHandler = new Handler(); 
private List<RemoveRunnable> mRunnables = new ArrayList<RemoveRunnable>(); 

private void removeItem(final int index, final int delay) { 
    Runnable runnable = new RemoveRunnable(myAdapter, index, this); 

    mRunnables.add(runnable); 

    mHandler.postDelayed, delay); 
} 

private void cancelAllRemovals() { 
    mHandler.removeCallbacksAndMessages(null); 
} 

@Override 
public void onItemRemoved(final int index) { 
    mRunnables.remove(index); 

    // Update rest indexes 
    for (int i=0; i < mRunnables.size(); i++) { 
     mRunnables.get(i).updateIndex(index); 
    } 
}