Android优化Adapter内的Click、LongClick

通过对convertView设置tag，来保存当前点击的pos

为解决点击item无法获取当前的pos，同时长按点击和点击两个动作，无法再adapter里很好的区分，设计OnConvertViewClickListener继承View.OnClickListener，对convertView和pos保存，pos保存在convertView的tag内，getTag后，回调clickCallback响应点击

public abstract class OnConvertViewClickListener implements View.OnClickListener {
    private View convertView;
    private int[] positionIds;

    public OnConvertViewClickListener(View convertView, int... positionIds) {
        this.convertView = convertView;
        this.positionIds = positionIds;
    }

    @TargetApi(Build.VERSION_CODES.DONUT)
    @Override
    public void onClick(View v) {
        int len = positionIds.length;
        int[] positions = new int[len];
        for (int i = 0; i < len; i++) {
            positions[i] = (int) convertView.getTag(positionIds[i]);
        }
        onClickCallBack(v, positions);
    }

    public abstract void onClickCallBack(View registedView, int... positionIds);
}

同理对longClick也做相同的设置：

public abstract class OnConvertViewLongClickListener implements View.OnLongClickListener {
    private View convertView;
    private int[] positionIds;

    public OnConvertViewLongClickListener(View convertView, int... positionIds) {
        this.convertView = convertView;
        this.positionIds = positionIds;
    }

    @Override
    public boolean onLongClick(View v) {
        int len = positionIds.length;
        int[] positions = new int[len];
        for (int i = 0; i < len; i++) {
            positions[i] = (int) convertView.getTag(positionIds[i]);
        }
        onLongClickCallBack(v, positions);
        return false;
    }

    public abstract void onLongClickCallBack(View registedView, int... positionIds);
}

之后再adapter，调用view.setOnClickListener(new OnConvertViewClickListener(convertView, POSITION) ，其中POSITION是常量，用来保存tag的标识，（注意在getView初始化setTag(POSITION, position)，这样才能正确的获取点击pos）