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你好朋友我得到的问题,添加项目在按钮上的微调项目选择列表视图。在这里我提供代码,请帮我摆脱这个问题。得到的问题,添加列表中的项目从微调项目选择按钮点击
import java.util.ArrayList;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.Adapter;
public class DefectlistviewActivity extends ListActivity {
ArrayList<String> listItems=new ArrayList<String>();
ArrayAdapter<String> adapter;
/** Called when the activity is first created. */
ListView defectDisplay;
Spinner spinner;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
spinner = (Spinner)this.findViewById(R.id.Defect);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
this, R.array.defects_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
// defectDisplay = (ListView) findViewById(R.id.list);
Button add = (Button) findViewById(R.id.Add_new_Defect_Button);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
startActivity(new Intent("com.android.HCS.AddDialog"));
}
});
spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());
}
private class EfficientAdapter extends BaseAdapter {
TextView tv;
// private LayoutInflater mInflater;
Context context;
@Override
public int getCount() {
// TODO Auto-generated method stub
return 0;
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View row, ViewGroup convertView) {
// TODO Auto-generated method stub
LayoutInflater mInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// mInflater = LayoutInflater.from(context);
if (null == convertView) {
row = mInflater.inflate(R.layout.listview, null);
} else {
row = convertView;
}
tv = (TextView) row.findViewById(R.id.Defect1);
//tv.setText(getItem(position));
String itemVal = (String)getItem(position);
tv.setText(itemVal);
return row;
}
}
public class MyOnItemSelectedListener implements OnItemSelectedListener {
public void onItemSelected(final AdapterView<?> parent,
final View view, final int pos, long id) {
Button add_defect = (Button) findViewById(R.id.Add_Defect_Button);
add_defect.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Toast.makeText(parent.getContext(),
parent.getItemAtPosition(pos).toString(), Toast.LENGTH_LONG).show();
setListAdapter(new EfficientAdapter());
}
});
}
public void onNothingSelected(AdapterView parent) {
// Do nothing.
}
}
}
你能不能放置你的XML文件 – 2011-09-08 05:51:39
你在哪里存储来自微调器的值? –