ListView Adapter动态更改数据实例

    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

private ListView mListView;
    private Button mBtnChange;
    private android.view.View.OnClickListener mCancelClick;
    private ArrayList<String> mStarNameList = new ArrayList<String>();
    private String[] mAnimalNameList = new String[] {"Dog","Cat","Snake","Duck","Bird"};
    private String[] mStarNameList1 = new String[] {"Kobe","James","Durant","Wade","Love"};
    private ArrayAdapter<String> mAdapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        this.setCtrlsEventHandler();
        this.mAdapter = new ArrayAdapter<String>(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<mAnimalNameList.length;i++)
                        mStarNameList.add(mAnimalNameList[i]);
                    mAdapter.notifyDataSetChanged();
                    mIsMutex = false;
                }
                else
                {
                    mBtnChange.setText("False");
                    mStarNameList.clear();
                    for(int i=0;i<mStarNameList1.length;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

参考文献：