Question

在OnItemClick（）方法中，我加载了新的Activity。我的ListView项目在OnItemClick（）上闪烁（我的意思是，稍微改变亮度或某些东西 - 不知道如何正确地说出来），但只是暂时闪烁然后在加载新的Activity之前返回到它之前的外观。我希望ListView项在加载新Activity之前始终保持闪烁，而不是一会儿。怎么做？

Answer 1

您可以使用View.setOnClickListener进行此操作..

当您将意图传递到下一页时，更改listview项目的背景颜色

    view.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {

                arg0.setBackgroundColor(Color.RED);
                Intent intent = new Intent(MainActivity.this, CheckinoutPage.class);
                startActivity(intent);
            }
        });

Answer 2

public class MainActivity extends Activity {

DataBaseAdapter dataBaseAdapter;
ListView listview;
MainListViewAdapter adapter;

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

    dataBaseAdapter = new DataBaseAdapter(MainActivity.this);

    dataBaseAdapter.openDatabase();

    listview = (ListView) findViewById(R.id.listview1);

    adapter = new MainListViewAdapter(this, dataBaseAdapter.getAllMainDetails());
    listview.setAdapter(adapter);

}

}

将ListView适配器作为

public class MainListViewAdapter extends BaseAdapter {

Context mContext;
LayoutInflater inflater;
private List<DetailsPOJO> details = null;
private ArrayList<DetailsPOJO> arraylist;

public MainListViewAdapter(Context context, List<DetailsPOJO> details) {
    mContext = context;
    this.details = details;
    inflater = LayoutInflater.from(mContext);
    this.arraylist = new ArrayList<DetailsPOJO>();
    this.arraylist.addAll(details);
}

public class ViewHolder {
    TextView checkindatetime, checkoutdatetime, latitudein, longitudein, addressin;

}

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

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

@Override
public long getItemId(int position) {
    // TODO Auto-generated method stub
    return position;
}

@Override
public View getView(final int position, View view, ViewGroup parent) {
    final ViewHolder holder;

    if (view == null) {
        holder = new ViewHolder();
        view = inflater.inflate(R.layout.maincustomrow, null);
        // Locate the TextViews in listview_item.xml
        holder.checkindatetime = (TextView) view.findViewById(R.id.checkindatetime);
        holder.latitudein = (TextView) view.findViewById(R.id.latin);
        holder.longitudein = (TextView) view.findViewById(R.id.longin);
        holder.addressin = (TextView) view.findViewById(R.id.addin);
        holder.checkoutdatetime = (TextView) view.findViewById(R.id.checkoutdatetime);

        view.setTag(holder);
    } else {
        holder = (ViewHolder) view.getTag();
    }

    holder.checkindatetime.setText(details.get(position).getCheckindatetime());
    holder.latitudein.setText(details.get(position).getLatitudein());
    holder.longitudein.setText(details.get(position).getLongitudein());
    holder.addressin.setText(details.get(position).getAddressin());

    view.setOnClickListener(new OnClickListener() {


        @Override
        public void onClick(View arg0) {

           //This part gives color on click till the next page loads

            arg0.setBackgroundColor(Color.RED);



            String checkindate = details.get(position).getCheckindatetime();
            Intent intent = new Intent(getApplicationContext(), LatLongDeatils.class);
            intent.putExtra("checkindate", checkindate);
            startActivity(intent);
        }
    });
    return view;
}

}

Answer 3

你说的眨眼可能就是物品选择器。对你来说你最想要的就是禁用默认选择器并自己手动实现它。

因此，在适配器的getView中，我将onClickListener设置为convertView，并在触发时将其backgroundColour设置为蓝色或任何颜色，然后执行操作。这样它就会保持这种颜色，直到加载下一个Activity。这是解决方案的要点，如果您需要更多帮助，请告诉我，我将编辑此答案。

编辑：为了回应下面的第二条评论，请尝试使用适配器中的public int跟踪单击的列表项，并在Activity / Fragments onResume中将其重置为-1。然后在适配器的getView中检查此列表项是否为选定列表项，设置背景颜色，否则将其返回白色或默认颜色。

android - 在OnItemClickListener上的ListView短暂闪烁

3 个答案: