Android 如何通过单击按钮使用BaseAdapter向ListView添加EditText值

我是android新手，通过单击按钮帮助了解如何使用BaseAdapter向ListView添加EditText值。 当我在EditText中输入值并单击Add按钮时，值必须放在ListViw中（ListView必须只有BaseAdapter）

ListDataActivity.java

public class ListDataActivity {
String myData;

public String getMyData()
{
    return myData;
}
public  void setMyData(String myDataa)
{
    myData=myDataa;
}}

public class MyBaseAdapterActivity extends BaseAdapter {

ArrayList<ListDataActivity> list =new ArrayList<ListDataActivity>();
LayoutInflater inflater;
Context context;

public MyBaseAdapterActivity(Context context,ArrayList<ListDataActivity>list)
{
    this.list=list;
    this.context=context;
    inflater = LayoutInflater.from(this.context);
}

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

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

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    MyViewHolder myViewHolder;

    if (convertView==null)
    {
        convertView=inflater.inflate(R.layout.activity_addlist,parent,false);
        myViewHolder=new MyViewHolder(convertView);
        convertView.setTag(myViewHolder);
    }else {
        myViewHolder =(MyViewHolder)convertView.getTag();
    }
    ListDataActivity listDataActivity = getItemId(position);

    myViewHolder.mydata.setText(listDataActivity.getMyData());

    return convertView;
}
private class MyViewHolder{
    String mydata;

    public MyViewHolder(View item)
    {
        mydata=(ListView)item.findViewById(R.id.myData);
    }
}}

public class AddlistActivity extends Activity {
ListView lstName;
Button btnAdd;
EditText edtName;
String myData;
Context context=AddlistActivity.this;
ArrayList<ListDataActivity>list=new ArrayList<ListDataActivity>();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_addlist);

    lstName=(ListView)findViewById(R.id.lst_name);
    btnAdd=(Button)findViewById(R.id.btn_add);
    edtName=(EditText)findViewById(R.id.edt_name);
    getDataInList();

    btnAdd.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            myData=edtName.getText().toString().trim();
        }
    });

    lstName.setAdapter(new MyBaseAdapterActivity(context,list));
}
private void getDataInList()
{
    for (int i = 0 ; i < myData.length();i++)
    {
        ListDataActivity listDataActivity = new ListDataActivity();
        listDataActivity.setMyData(myData[i]);
        list.add(listDataActivity);
    }
}}

BaseAdapterActivity.java

public class ListDataActivity {
String myData;

public String getMyData()
{
    return myData;
}
public  void setMyData(String myDataa)
{
    myData=myDataa;
}}

public class MyBaseAdapterActivity extends BaseAdapter {

ArrayList<ListDataActivity> list =new ArrayList<ListDataActivity>();
LayoutInflater inflater;
Context context;

public MyBaseAdapterActivity(Context context,ArrayList<ListDataActivity>list)
{
    this.list=list;
    this.context=context;
    inflater = LayoutInflater.from(this.context);
}

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

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

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    MyViewHolder myViewHolder;

    if (convertView==null)
    {
        convertView=inflater.inflate(R.layout.activity_addlist,parent,false);
        myViewHolder=new MyViewHolder(convertView);
        convertView.setTag(myViewHolder);
    }else {
        myViewHolder =(MyViewHolder)convertView.getTag();
    }
    ListDataActivity listDataActivity = getItemId(position);

    myViewHolder.mydata.setText(listDataActivity.getMyData());

    return convertView;
}
private class MyViewHolder{
    String mydata;

    public MyViewHolder(View item)
    {
        mydata=(ListView)item.findViewById(R.id.myData);
    }
}}

public class AddlistActivity extends Activity {
ListView lstName;
Button btnAdd;
EditText edtName;
String myData;
Context context=AddlistActivity.this;
ArrayList<ListDataActivity>list=new ArrayList<ListDataActivity>();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_addlist);

    lstName=(ListView)findViewById(R.id.lst_name);
    btnAdd=(Button)findViewById(R.id.btn_add);
    edtName=(EditText)findViewById(R.id.edt_name);
    getDataInList();

    btnAdd.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            myData=edtName.getText().toString().trim();
        }
    });

    lstName.setAdapter(new MyBaseAdapterActivity(context,list));
}
private void getDataInList()
{
    for (int i = 0 ; i < myData.length();i++)
    {
        ListDataActivity listDataActivity = new ListDataActivity();
        listDataActivity.setMyData(myData[i]);
        list.add(listDataActivity);
    }
}}

公共类MyBaseAdapterActivity扩展了BaseAdapter{
ArrayList=新建ArrayList（）；
充气机；
语境；
公共MyBaseAdapterActivity（上下文，ArrayList）
{
this.list=list；
this.context=context；
充气器=从（此上下文）开始的充气器；
}
@凌驾
public int getCount（）{
返回list.size（）；
}
@凌驾
公共对象getItem（int位置）{
返回列表。获取（位置）；
}
@凌驾
公共长getItemId（int位置）{
返回0；
}
@凌驾
公共视图getView（int位置、视图转换视图、视图组父视图）{
MyViewHolder MyViewHolder；
if（convertView==null）
{
convertView=充气机。充气（R.layout.activity\u addlist，父项，false）；
myViewHolder=新的myViewHolder（convertView）；
setTag（myViewHolder）；
}否则{
myViewHolder=（myViewHolder）convertView.getTag（）；
}
ListDataActivity ListDataActivity=getItemId（位置）；
myViewHolder.mydata.setText（listDataActivity.getMyData（））；
返回视图；
}
私有类MyViewHolder{
字符串mydata；
公共MyViewHolder（视图项）
{
mydata=（ListView）item.findViewById（R.id.mydata）；
}
}}

AddListActivity.java

public class ListDataActivity {
String myData;

public String getMyData()
{
    return myData;
}
public  void setMyData(String myDataa)
{
    myData=myDataa;
}}

public class MyBaseAdapterActivity extends BaseAdapter {

ArrayList<ListDataActivity> list =new ArrayList<ListDataActivity>();
LayoutInflater inflater;
Context context;

public MyBaseAdapterActivity(Context context,ArrayList<ListDataActivity>list)
{
    this.list=list;
    this.context=context;
    inflater = LayoutInflater.from(this.context);
}

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

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

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {

    MyViewHolder myViewHolder;

    if (convertView==null)
    {
        convertView=inflater.inflate(R.layout.activity_addlist,parent,false);
        myViewHolder=new MyViewHolder(convertView);
        convertView.setTag(myViewHolder);
    }else {
        myViewHolder =(MyViewHolder)convertView.getTag();
    }
    ListDataActivity listDataActivity = getItemId(position);

    myViewHolder.mydata.setText(listDataActivity.getMyData());

    return convertView;
}
private class MyViewHolder{
    String mydata;

    public MyViewHolder(View item)
    {
        mydata=(ListView)item.findViewById(R.id.myData);
    }
}}

public class AddlistActivity extends Activity {
ListView lstName;
Button btnAdd;
EditText edtName;
String myData;
Context context=AddlistActivity.this;
ArrayList<ListDataActivity>list=new ArrayList<ListDataActivity>();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_addlist);

    lstName=(ListView)findViewById(R.id.lst_name);
    btnAdd=(Button)findViewById(R.id.btn_add);
    edtName=(EditText)findViewById(R.id.edt_name);
    getDataInList();

    btnAdd.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            myData=edtName.getText().toString().trim();
        }
    });

    lstName.setAdapter(new MyBaseAdapterActivity(context,list));
}
private void getDataInList()
{
    for (int i = 0 ; i < myData.length();i++)
    {
        ListDataActivity listDataActivity = new ListDataActivity();
        listDataActivity.setMyData(myData[i]);
        list.add(listDataActivity);
    }
}}

公共类AddlistActivity扩展活动{
列表视图名称；
按钮btnAdd；
编辑文本名称；
字符串myData；
Context=AddlistActivity.this；
ArrayList=新的ArrayList（）；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity\u addlist）；
lstName=（ListView）findViewById（R.id.lst_name）；
btnAdd=（按钮）findviewbyd（R.id.btn_add）；
edtName=（EditText）findViewById（R.id.edt\u name）；
getDataInList（）；
btnAdd.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
myData=edtName.getText（）.toString（）.trim（）；
}
});
setAdapter（新的MyBaseAdapterActivity（上下文，列表））；
}
私有void getDataInList（）
{
对于（int i=0；i

要在单击按钮时将值从编辑文本存储到列表视图，请在单击按钮时执行以下步骤：

从editText获取文本并存储在字符串中

    String myText=editText.getText().toString().trim();

然后将其保存到arraylist（通过BaseAdapter将数据提供给listview的数据结构）

ArrayList stockList=new ArrayList（）；
stockList.add（myText）；

此arraylist主要包含edittext的数据，然后是call adapter.notifydatasetchanged（） 谢谢