今天小编给大家介绍下android ListView内数据的动态添加与删除实例代码，平时喜欢android ListView内数据的动态添加与删除实例代码的朋友赶紧收藏起来吧！记得点赞哦~
main.xml 文件：
代码如下：
?xml version="1.0" encoding="utf-8"?
LinearLayout ""
""
""
""
LinearLayout
""
""
""
ListView
"+"
""
""
/
Button
"+"
""
""
"添加"
/
/LinearLayout
/LinearLayout
文件：
代码如下：
?xml version="1.0" encoding="utf-8"?
LinearLayout ""
""
""
""
"#"
""
EditText
"+"
""
""
/
Button
"+"
""
""
"删除"
/
/LinearLayout
MainActivity .java
代码如下：
package ;
import ;
import ;
import ;
import ;
import ;
import ;
import .OnClickListener;
import .OnFocusChangeListener;
import Group;
import ;
import ;
import ;
import ;
import ;
public class TestAndroidActivity extends Activity {
/** Called when the activity is first created. */
private Button button,add;
private TextView text;
private ListView listview;
public MyAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
listview = (ListView) findViewById(R.id.listview);
add = (Button) findViewById(R.id.add);
adapter = new MyAdapter(this);
listview.setAdapter(adapter);
add.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
adapter.arr.add("");
adapter.notifyDataSetChanged();
}
});
}
private class MyAdapter extends BaseAdapter {
private Context context;
private LayoutInflater inflater;
public ArrayListString arr;
public MyAdapter(Context context) {
super();
this.context = context;
inflater = LayoutInflater.from(context);
arr = new ArrayListString();
for(int i=0;i3;i++){ //listview初始化3个子项
arr.add("");
}
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return arr.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public View getView(final int position, View view, ViewGroup arg2) {
// TODO Auto-generated method stub
if(view == null){
view = inflater.inflate(R.layout.list_item, null);
}
final EditText edit = (EditText) view.findViewById(R.id.edit);
edit.setText(arr.get(position)); //在重构adapter的时候不至于数据错乱
Button del = (Button) view.findViewById(R.id.del);
edit.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
// TODO Auto-generated method stub
if(arr.size()0){
arr.set(position, edit.getText().toString());
}
}
});
del.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
//从集合中删除所删除项的EditText的内容
arr.remove(position);
adapter.notifyDataSetChanged();
}
});
return view;
}
}
}
