我有一个复选框的列表视图，其中第一个复选框被选中，如果用户点击下一个按钮，则页脚我有下一个按钮，然后选中下一个复选框，检查第二行。如果再次按下，则检查第三个。请帮助我坚持这么久。谢谢。
public class PlanetArrayAdapter extends ArrayAdapter<Planet> {
private LayoutInflater inflater;
ArrayList<Boolean> positionArray;
Context ctx;
public PlanetArrayAdapter( Context context, List<Planet> planetList ) {
super( context, R.layout.list_rowss, R.id.rowTextView, planetList );
// Cache the LayoutInflate to avoid asking for a new one each time.
inflater = LayoutInflater.from(context) ;
positionArray = new ArrayList<Boolean>(planetList.size());
for(int i =0;i<planetList.size();i++){
positionArray.add(false);
}
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
position_new =position;
Planet planet = (Planet) this.getItem( position_new );
final CheckBox checkBox ;
final TextView textView,textview_duration_MAX, textview_duration_Current;
final CheckBox pauseplay; ;
final ImageView download,fb,twitter,add;
final SeekBar pb;
if ( convertView == null ) {
convertView = inflater.inflate(R.layout.list_rowss, null);
textView = (TextView) convertView.findViewById( R.id.rowTextView );
checkBox = (CheckBox) convertView.findViewById( R.id.CheckBox01 );
pb = (SeekBar) convertView.findViewById(R.id.songProgressBar);
pauseplay = (CheckBox)convertView.findViewById(R.id.button);
textview_duration_MAX = (TextView)convertView.findViewById(R.id.textView3);
textview_duration_Current =(TextView)convertView.findViewById(R.id.textView2);
download = (ImageView) convertView.findViewById(R.id.imageView);
fb = (ImageView) convertView.findViewById(R.id.imageView4);
twitter = (ImageView) convertView.findViewById(R.id.imageView5);
add = (ImageView) convertView.findViewById(R.id.imageView6);
checkBox.setTag(position);
// Optimization: Tag the row with it's child views, so we don't have to
// call findViewById() later when we reuse the row.
convertView.setTag( new PlanetViewHolder(textView,textview_duration_MAX,textview_duration_Current,checkBox,pb,pauseplay,add) );
checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
Planet palnts = (Planet) buttonView.getTag();
Log.d("poiuy",palnts+"");//For getting checkbox postion
CheckBox cb = (CheckBox) buttonView;
Planet planet = (Planet) cb.getTag();
planet.setChecked(cb.isChecked());
boolean isStart;
if (checkBox.isChecked()) {
if (selected != null) {
selected.setChecked(false);
}
checkBox.setChecked(true);
selected = checkBox;
pauseplay.setVisibility(View.VISIBLE);
song_namef.setText(planet.getName().substring(18));
playButton.setImageResource(R.drawable.pausef);
View parentRow = (View) buttonView.getParent();
ListView listView = (ListView) parentRow.getParent();
positiono = listView.getPositionForView(parentRow);
mPlayingPosition = positiono;
final Runnable mUpdateTime = new Runnable() {
public void run() {
int currentDuration;
int totalduration;
if (mPlayer.isPlaying()) {
currentDuration = mPlayer.getCurrentPosition();
totalduration = mPlayer.getDuration();
textview_duration_MAX.setText("" + milliSecondsToTimer((long) totalduration));
textview_duration_Current.setText("" + milliSecondsToTimer((long) currentDuration));
textview_duration_Current.postDelayed(this, 1000);
} else {
textview_duration_Current.removeCallbacks(this);
}
}
};
isStart = false;
// Toast.makeText(getContext(), "Play", Toast.LENGTH_SHORT).show();
Toast.makeText(getContext(),"positiono"+positiono,Toast.LENGTH_SHORT).show();
Log.d("OnlyPosssssd", String.valueOf(mPlayingPosition));
try {
mPlayer.reset();
mPlayer.setDataSource(String.valueOf(planet = listAdapter.getItem(mPlayingPosition)));
mPlayer.prepare();
mPlayer.start();
mPlayingPosition = positiono;
// Log.d("OnlyPos", String.valueOf(mPlayingPosition));
pb.setProgress(0);
pb.setMax(100);
seekbarf.setMax(mPlayer.getDuration());
updatePosition();
isStarted = true;
mHandler.postDelayed(mProgressUpdater, 500);
} catch (IOException e) {
e.printStackTrace();
}
);}
next.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(getContext(),"Next",Toast.LENGTH_SHORT).show();
itemPosition = itemPosition+1;
next(itemPosition);
playSong(itemPosition);
if (view != null) {
CheckBox checkBox = (CheckBox)view.findViewById(R.id.CheckBox01);
checkBox.setChecked(!checkBox.isChecked());
}
}
});
public void next(int next){
Toast.makeText(getContext(),"Position :"+itemPosition+" ListItem : " +itemValue , Toast.LENGTH_LONG).show();
next, Toast.LENGTH_SHORT).show();
parents.getChildAt(next).setBackground(getContext().getDrawable(R.drawable.backpause));
if (save != -1 && save != next){
parents.getChildAt(save).setBackgroundColor(Color.TRANSPARENT);
}
save = next;
}
答案 0 :(得分：0)
由于您已经在Planet类中使用了setChecked方法，因此最好是保留最后一次单击索引的轨迹，并在每个下一个按钮上单击增加它。然后根据getChecked（）结果从该索引的项目列表中获取行星项目，setChecked（true）或false，然后调用adapter.notifydatasetchanged。