我一直试图让我的listview在oncreate期间更改背景颜色,但没有运气。
为此,我在数据库中保存1或0,具体取决于是否单击它并相应地为行着色。但是我的行在oncreate期间不会改变颜色。
我提供了我的oncreate和arrayadaptor扩展。
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.item_list);
// Read var from Intent
Intent intent= getIntent();
final String ListID = intent.getStringExtra("ListID");
golbalItemID = ListID;
ivAdd = (ImageView) findViewById(R.id.ivAdd);
ivCancel = (ImageView) findViewById(R.id.ivCancel);
tvTotItems = (TextView) findViewById(R.id.tvTotItems);
final myDBClass myDb = new myDBClass(this);
final ArrayList<HashMap<String, String>> MebmerList = myDb.SelectAllItemData(ListID);
myData = myDb.SelectItemData(Integer.parseInt(ListID.toString()));
// listView1
final ListView lisView1 = (ListView)findViewById(R.id.listView1);
registerForContextMenu(lisView1);
MyAdapter sAdap;
sAdap = new MyAdapter(ListItems.this, MebmerList, R.layout.activity_column,
new String[] {"Name", "Price", "Quan"}, new int[] {R.id.ColName, R.id.ColTel, R.id.ColQuan});
lisView1.setAdapter(sAdap);
lisView1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> myAdapter, View myView, int position, long mylng) {
int iChk = 0;
// Show Data
String arrData[] = myDb.SelectItemData((MebmerList.get(position).get("ItemID").toString()));
if(arrData != null)
{
iChk = Integer.parseInt(arrData[4]);
}
if(iChk == 1)
{
ischkCheck(Integer.parseInt(MebmerList.get(position).get("ItemID").toString()), 0);
change_color(lisView1, position, 255, 255, 255);
System.out.println("POSITION!ichk=1" + myAdapter.getItemAtPosition(position).toString());
setTitle(myAdapter.getItemAtPosition(position).toString());
}
else if(iChk == 0)
{
ischkCheck(Integer.parseInt(MebmerList.get(position).get("ItemID").toString()), 1);
change_color(lisView1, position, 155, 155, 138);
System.out.println("POSITION!ichk=0" + myAdapter.getItemAtPosition(position).toString());
}
}});
ivAdd.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent newActivity = new Intent(ListItems.this,AddItem.class);
newActivity.putExtra("ListID", ListID);
startActivity(newActivity);
finish();
}
});
ivCancel.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent newActivity = new Intent(ListItems.this,MenuScreen.class);
startActivity(newActivity);
finish();
}
});
public class MyAdapter extends ArrayAdapter<String> {
public MyAdapter(ListItems listItems,ArrayList<HashMap<String, String>> mebmerList,int activityColumn, String[] strings, int[] is) {
super(listItems, activityColumn, strings);
// TODO Auto-generated constructor stub
System.out.println("POSITION!ichk=1" + "FIRST!");
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = super.getView( position, convertView, parent );
view.setBackgroundColor( 0xff00ff00 );
System.out.println("POSITION!ichk=1" + "MYADGETVIEWP");
return view;
}
}