<分区>
我有一个应用程序，这个应用程序包含 listview，Listview 从本地数据库 sqlite 检索数据，通过使用适配器这是我的适配器类代码:
public class CommandsListAdapter extends BaseAdapter {
public static String ID = null;
private List<String> data;
ArrayList<HashMap<String, String>> commandList = new ArrayList<HashMap<String, String>>();
private ArrayAdapter<String> listAdapter;
Context context;
public CommandsListAdapter(Context con,
ArrayList<HashMap<String, String>> list) {
commandList = list;
context = con;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return commandList.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return commandList.get(arg0);
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public View getView(final int index, View convertView, ViewGroup arg2) {
// TODO Auto-generated method stub
if (convertView == null) {
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.people_list, null);
}
TextView tvTime = (TextView) convertView.findViewById(R.id.timeOfBlock);
TextView tvName = (TextView) convertView.findViewById(R.id.name);
tvName.setText(commandList.get(index).get(MyDatabase.Number_Block));
tvTime.setText(commandList.get(index).get(MyDatabase.Time_Of_Block));
Typeface tf = Typeface.createFromAsset(context.getAssets(),
"segoeuil.ttf");
tvTime.setTypeface(tf);
tvName.setTypeface(tf);
convertView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// Message.message(context,
// commandList.get(index).get(MyDatabase.Block_Table_Id));
Intent i = new Intent(context, MessageDetail.class);
i.putExtra(ID,
commandList.get(index).get(MyDatabase.Block_Table_Id)
.toString());
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// context.startActivity(i);
}
});
convertView.setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View v) {
// TODO Auto-generated method stub
ID=commandList.get(index).get(MyDatabase.Block_Table_Id);
removeListItem(v, index);
return false;
}
});
return convertView;
}
protected void removeListItem(View rowView, final int positon) {
final Animation animation = AnimationUtils.loadAnimation(
context, android.R.anim.slide_out_right);
rowView.startAnimation(animation);
Handler handle = new Handler();
handle.postDelayed(new Runnable() {
@Override
public void run() {
commandList.remove(positon);
MyDatabase db=new MyDatabase(context);
db.open();
// db.deleteBlock(ID);
db.close();
Message.message(context, ID);
}
}, 1000);
}
}
这是我的 Activity 类代码:
public class ListOfBlock extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list_of_block);
ActionBar actionBar = getActionBar();
// for color
actionBar.setBackgroundDrawable(new ColorDrawable(Color
.parseColor("#a20000")));
if (actionBar != null) {
actionBar.setTitle(getResources().getString(
R.string.title_activity_list_of_block));
actionBar.setDisplayHomeAsUpEnabled(true);
// actionBar.setIcon(R.drawable.ic_launcher);
}
ListView lvCommands = (ListView) findViewById(R.id.ListOfBlockerListView);
lvCommands.setAdapter(new CommandsListAdapter(getApplicationContext(),
new MyDatabase(getApplicationContext()).getBlockers()));
}
}
现在我想在 getview 方法中刷新 ListView ，我不知道该怎么做，我找到了一些答案，但实际上这对我没有帮助，感谢您的帮助。