android ArrayAdapter 如何动态更改数据

在android开发中ListView是比较常用的组件，它以列表的形式展示具体内容，并且能够根据数据的长度自适应显示，使用adpater与listview捆绑后，有时希望在程序使用过程中能动态的更改listview中显示的数据

使用adpater与listview捆绑后，有时希望在程序使用过程中能动态的更改listview中显示的数据，如何处理?

一、关键代码段

代码如下

复制代码

private ListView mListView;     private Button mBtnChange;     private android.view.View.OnClickListener mCancelClick;     private ArrayList mStarNameList = new ArrayList();     private String[] mAnimalNameList = new String[] {"Dog","Cat","Snake","Duck","Bird"};     private String[] mStarNameList1 = new String[] {"Kobe","James","Durant","Wade","Love"};     private ArrayAdapter mAdapter;     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);         this.setCtrlsEventHandler();         this.mAdapter = new ArrayAdapter(this,android.R.layout.simple_list_item_checked,mStarNameList);         this.mListView = (ListView)findViewById(R.id.listView1);         this.mBtnChange = (Button)findViewById(R.id.button1);         this.mBtnChange.setOnClickListener(this.mCancelClick);         this.mStarNameList.add("Kobe");         this.mStarNameList.add("James");         this.mStarNameList.add("Durant");         this.mStarNameList.add("Wade");         this.mListView.setAdapter(this.mAdapter);         this.mListView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);     }     private boolean mIsMutex = false;     private void setCtrlsEventHandler()     {         this.mCancelClick = new View.OnClickListener()         {             @Override             public void onClick(View v)             {                 if(mIsMutex)                 {                     mBtnChange.setText("True");                     mStarNameList.clear();                     for(int i=0;i                        mStarNameList.add(mAnimalNameList[i]);                     mAdapter.notifyDataSetChanged();                     mIsMutex = false;                 }                 else                 {                     mBtnChange.setText("False");                     mStarNameList.clear();                     for(int i=0;i                        mStarNameList.add(mStarNameList1[i]);                     mAdapter.notifyDataSetChanged();                     mIsMutex = true;                 }             }         };     }

功能实现主要原理：

用ArrayList mStarNameList 给Adapter填充数据，再将listview与adapter捆绑。

当要修改数据时候，只需要对mStarNameList 进行修改，再调用Adapter.notifyDataSetChanged()就可以实现效果。

二、执行效果

转载于:https://www.cnblogs.com/wxmdevelop/p/5381936.html