Question

我正在尝试编写一个应用程序来更改图像资源，当按下该imageView时。

我在代码中使用了setOnTouchListener和setOnClickListener。在两者中，我都会得到日志。 BUt，图像没有变化。我在下面给出了我的代码：

ImageView more;
 more = (ImageView) row.findViewById(R.id.imageView1);
        more.setImageResource(R.drawable.ic_more_1);

setOnTouchListener是：

more.setOnTouchListener(new View.OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                // TODO Auto-generated method stub
                Log.d(TAG,"Event type "+event+" "+ event.getAction());
                switch (event.getAction()) {

                case MotionEvent.ACTION_DOWN:
                    more.setImageResource(R.drawable.ic_more_2);
                    break;
                case MotionEvent.ACTION_UP:
                    more.setImageResource(R.drawable.ic_more_1);
                    break;
                }
                return false;
            }
        });

我的setOnClickListener是：

 more.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                if (!buttonClicked) {
                    Log.d(TAG, "on image click..... false" + buttonClicked);
                    buttonClicked = true;
                    more.setImageResource(R.drawable.ic_more_2);
                }
                if (buttonClicked) {
                    Log.d(TAG, "on image click..... true" + buttonClicked);
                    buttonClicked = false;
                    more.setImageResource(R.drawable.ic_more_1);
                }
                // more.setImageResource(R.drawable.ic_more_2);
                // TODO Auto-generated method stub

                 /* Log.d(TAG, "on image click..... " + pos);
                 * if(listData.getPosition() == SUBSCRIBE) {
                 * more.setImageResource(R.drawable.ic_more_2);
                 * //more.setImageResource(R.drawable.ic_more_1); Log.d(TAG,
                 * "For Subscribe..................."); intent = new
                 * Intent(getContext(), EpisodeActivity.class);
                 * intent.putExtra("URL", strurl);
                 * getContext().startActivity(intent);
                 * 
                 * } else { // TODO REWRITE IT FOR ADDING AS A FAVIOURITE ITEMS
                 * Log.d(TAG, "For Episode..................."); }
                 */

            }
        });

请指出我做了什么错误。

提前谢谢!!!

注意：由于我希望listView ListItem images对Custom Adapter进行此更改，因此我在public class CustomAdapterForSubcribe extends ArrayAdapter<ListData> { public final String TAG = "CustomAdapterForSubcribe"; Context context; int layoutResourceId; boolean buttonClicked = false; LayoutInflater inflater; TextView title, desc; ImageView more, fav, imageRightSubscribe, imageRightEpisode; Intent intent; public static int SUBSCRIBE = 1; public static int EPISODE = 0; private String strurl = "http://timesofindia.feedsportal.com/c/33039/f/533916/index.rss"; private String imageUrlEpisode = "http://news.bbcimg.co.uk/media/images/66996000/jpg/_66996549_66996528.jpg"; public CustomAdapterForSubcribe(Context context, int layoutResourceId, List<ListData> objects, int option) { // TODO Auto-generated constructor stub super(context, layoutResourceId, objects); this.context = context; this.layoutResourceId = layoutResourceId; this.inflater = LayoutInflater.from(context); } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub final int pos = position; View row = convertView; if (row == null) { LayoutInflater inflater = LayoutInflater.from(getContext()); row = inflater.inflate(R.layout.episode_row_view, parent, false); } final ListData listData = getItem(position); title = (TextView) row.findViewById(R.id.title); desc = (TextView) row.findViewById(R.id.description); more = (ImageView) row.findViewById(R.id.imageView1); if (listData.getPosition() == SUBSCRIBE) { more.setImageResource(R.drawable.ic_more_1); } else { more.setImageResource(R.drawable.ic_favourite_1); } // more.setImageResource(R.drawable.ic_more_1); imageRightEpisode = (ImageView) row.findViewById(R.id.image); imageRightEpisode.setTag(imageUrlEpisode); new DownloadImagesTask().execute(imageRightEpisode); more.setTag(new Integer(position)); if (listData.getPosition() == SUBSCRIBE) { Log.d(TAG, "<<<<.....In option.....>>>>"); desc.setVisibility(View.GONE); // title.setGravity(Gravity.CENTER_HORIZONTAL); // title.setGravity(Gravity.CENTER_VERTICAL); title.setGravity(Gravity.CENTER); title.setTextSize(16); title.setTypeface(Typeface.DEFAULT_BOLD); } title.setText(listData.getTitle()); desc.setText(listData.getDesc()); // more.setOnTouchListener(new View.OnTouchListener() { // // @Override // public boolean onTouch(View v, MotionEvent event) { // // TODO Auto-generated method stub // Log.d(TAG, "Event type " + event + " " + event.getAction()); // if (listData.getPosition() == SUBSCRIBE) { // switch (event.getAction()) { // // case MotionEvent.ACTION_DOWN: // Log.d(TAG, "SUBSCRIBE...Image press releasing...."); // more.setImageResource(R.drawable.ic_more_1); // more.invalidate(); // break; // case MotionEvent.ACTION_UP: // Log.d(TAG, "SUBSCRIBE... Image pressing...."); // more.setImageResource(R.drawable.ic_more_2); // break; // } // } // // return false; // } // }); more.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (listData.getPosition() == EPISODE) { if (!buttonClicked) { Log.d(TAG, "on image click..... false" + pos); more.setImageResource(R.drawable.ic_favourite_2); buttonClicked = true; } else if (buttonClicked) { Log.d(TAG, "on image click..... " + buttonClicked); more.setImageResource(R.drawable.ic_favourite_1); buttonClicked = false; } } // more.setImageResource(R.drawable.ic_more_2); // TODO Auto-generated method stub else if (listData.getPosition() == SUBSCRIBE) { Log.d(TAG, "on image click..... " + pos); Log.d(TAG, "For Subscribe..................."); intent = new Intent(getContext(), EpisodeActivity.class); intent.putExtra("URL", strurl); getContext().startActivity(intent); } else { // TODO REWRITE IT FOR ADDING AS A FAVIOURITE ITEMS Log.d(TAG, "For Episode..................."); } } }); return row; }

中使用此代码

更新

我的适配器：

{{1}}

即使我的代码中有些变化，TouchClickListener也不能用于我的图像

Answer 1

我使用了Holder而我更改了if条件而不是Switch案例

我的工作代码是：

holder.more.setOnTouchListener(new View.OnTouchListener() {

                @Override
                public boolean onTouch(View v, MotionEvent event) {

                    if (listData.getPosition() == SUBSCRIBE) {

                        if(event.getAction() == MotionEvent.ACTION_UP){
                            Log.d(TAG,"releasing.....");
                            holder.fav.setImageResource(R.drawable.ic_more_1);
                        }
                        if(event.getAction() == MotionEvent.ACTION_DOWN){
                            Log.d(TAG,"pressing.....");
                            holder.fav.setImageResource(R.drawable.ic_more_2);
                        }
                    }

                    return false;
                }
            });

按下imageView时更改imageView中的资源的问题

1 个答案: