问题描述
写一个demo 想在recyclerview中 的item 中的进度条有动画效果
就用不断设置setProgress()的方式来写了，可是在实际过程中，会发生动画播放在不正确的item上 即使我判断如果item是被复用的话则取消也无能为力。。
SparseIntArray sparseIntArray = new SparseIntArray();ArrayMap<Integer, Disposable> arrayMap = new ArrayMap<>();binding.recyclerView.setAdapter(new BaseRecyclerViewAdapter<Integer>(strings) { @Override public int getLayoutId(int viewType) {return R.layout.recycler_item;//item布局 其中有一个横向的进度条空间 } @Override protected void convert(VH holder, Integer i, int position) { int after = sparseIntArray.get(position);//查看item是否第一次使用Disposable disposable1 = arrayMap.get(position);if (disposable1 != null) { PtrCLog.d('RecyclerViewActivity', 'convert: ' + '取消订阅'); disposable1.dispose();}if (after == i) { PtrCLog.d('RecyclerViewActivity', 'convert: ' + '相同后直接设置'); holder.setProgress(R.id.progress_bar_financing_item, i);} else { sparseIntArray.put(position, i);//存 int castProgress = (i); //当前得到的 PtrCLog.d('LoanListAdapter', 'progress: ' + castProgress); PtrCLog.d('LoanListAdapter', '初次生效当前坐标为: ' + position + '-----' + '存储的进度为' + castProgress); Disposable disposable = Observable .intervalRange(0, castProgress + 1, 0, 30, TimeUnit.MILLISECONDS) .observeOn(AndroidSchedulers.mainThread()) .subscribe(aLong -> {PtrCLog.d('LoanListAdapter', 'convert: ' + position + '----' + aLong + '');PtrCLog.d('RecyclerViewActivity', 'convert: after' + (after == i));holder.setProgress(R.id.progress_bar_financing_item, Integer.parseInt(aLong + '')); }, throwable -> { } , () -> { }); arrayMap.put(position, disposable);} }});
问题解答
回答1：以后这种“动画”尽量还是用动画来做吧，
ValueAnimator animator = ValueAnimator.ofInt(0, castProgress);animator.addUpdateListener(animation -> { int value = (int) animation.getAnimatedValue(); holder.setProgress(R.id.progress_bar_financing_item, value);});animator.setDuration(2000);animator.start();
