我有一個應用程序顯示一個籃球隊的時間表。它列出他們已經玩過的遊戲,然後列出即將到來的遊戲。根據是否玩過遊戲,我正在改變行佈局。例如,如果遊戲已經播放,我在TextView中顯示「W」或「L」,但如果遊戲未播放,我隱藏了此TextView。ListView查看回收行弄錯
我的問題是,當我滾動到底部,其中所有的TextViews被隱藏,然後滾回到頂部,所有的「L」和「W」在哪裏開始,是現在隱藏。無論如何要防止這一點?這裏是我的適配器:
package com.example.sixerstrivia;
import java.util.ArrayList;
import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
public class GameAdapter extends ArrayAdapter<Game> {
public GameAdapter(Context context, ArrayList<Game> games) {
super(context, R.layout.game_row, games);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final Game game = getItem(position);
if (convertView == null) {
convertView = LayoutInflater.from(getContext()).inflate(
R.layout.game_row, parent, false);
}
TextView tvTopTeam = (TextView) convertView
.findViewById(R.id.tvTopTeam);
TextView tvBottomTeam = (TextView) convertView
.findViewById(R.id.tvBottomTeam);
TextView tvTopScore = (TextView) convertView
.findViewById(R.id.tvTopScore);
TextView tvBottomScore = (TextView) convertView
.findViewById(R.id.tvBottomScore);
TextView tvAt = (TextView) convertView.findViewById(R.id.tvAt);
TextView tvVs = (TextView) convertView.findViewById(R.id.tvVs);
TextView tvWin = (TextView) convertView.findViewById(R.id.tvWin);
TextView tvDate = (TextView) convertView.findViewById(R.id.tvDate);
if (game.completed) {
tvDate.setText(game.gameDate);
if (game.win) {
tvWin.setText("W");
tvWin.setTextColor(Color.GREEN);
} else {
tvWin.setText("L");
tvWin.setTextColor(Color.RED);
}
} else {
tvDate.setText(game.gameDate + "\n" + game.gameTime + " PM");
tvWin.setVisibility(View.GONE);
tvTopScore.setVisibility(View.INVISIBLE);
tvBottomScore.setVisibility(View.INVISIBLE);
}
if (!game.homeTeam.equals("PHI")) {
tvTopTeam.setText(game.awayTeam);
tvVs.setVisibility(View.GONE);
if (game.completed) {
tvAt.setVisibility(View.GONE);
tvTopScore.setText(game.awayScore);
tvBottomScore.setText(game.homeScore);
}
tvBottomTeam.setText(game.homeTeam);
} else {
tvTopTeam.setText(game.homeTeam);
tvAt.setVisibility(View.GONE);
if (game.completed) {
tvVs.setVisibility(View.GONE);
tvTopScore.setText(game.homeScore);
tvBottomScore.setText(game.awayScore);
}
tvBottomTeam.setText(game.awayTeam);
}
return convertView;
}
}
使用viewHolder。它可以解決你的問題 – 2015-02-11 22:27:58