recyclerview 软键盘_android-打开键盘时，Recyclerview不会滚动到结尾

android-打开键盘时，Recyclerview不会滚动到结尾

我在应用程序中使用recylerview，并且每当将新元素添加到recyclerview时，它都会通过使用滚动到最后一个元素

recyclerView.scrollToPosition(adapter.getCount());

但是，每当键盘打开时(由于editTextView)，它都会调整视图的大小，并且recyclerview会变小，但是无法滚动到最后一个元素。

android:windowSoftInputMode="adjustResize"

我什至尝试使用以下代码滚动到最后一个元素，但是没有用

editTextView.setOnFocusChangeListener(new View.OnFocusChangeListener() {

@Override

public void onFocusChange(View v, boolean hasFocus) {

if(hasFocus){

recyclerView.scrollToPosition(chatAdapter.getItemCount());

}

}

});

我可以尝试adjustPan向上移动平移锅，但是它隐藏了我的工具栏。请提出任何纠正问题的方法。

10个解决方案

62 votes

您可以使用recyclerview.addOnLayoutChangeListener()捕捉键盘变化。如果底部小于oldBottom，则键盘处于向上状态。

if ( bottom < oldBottom) {

recyclerview.postDelayed(new Runnable() {

@Override

public void run() {

recyclerview.scrollToPosition(bottomPosition);

}

}, 100);

}

jihoon kim answered 2020-02-14T05:09:07Z

50 votes

将此添加到您的活动或片段中：

if (Build.VERSION.SDK_INT >= 11) {

recyclerView.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {

@Override

public void onLayoutChange(View v,

int left, int top, int right, int bottom,

int oldLeft, int oldTop, int oldRight, int oldBottom) {

if (bottom < oldBottom) {

recyclerView.postDelayed(new Runnable() {

@Override

public void run() {

recyclerView.smoothScrollToPosition(

recyclerView.getAdapter().getItemCount() - 1);

}

}, 100);

}

}

});

}

mutkan answered 2020-02-14T05:09:28Z

19 votes

这个对我有用

LinearLayoutManager layoutManager = new LinearLayoutManager(context);

layoutManager.setStackFromEnd(true);

recyclerView.setLayoutManager(layoutManager);

anisart answered 2020-02-14T05:09:48Z

7 votes

尽管这是一个老问题，但我今天遇到了这个问题，但发现上述方法均无效。 这是我的解决方案

recyclerView.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {

@Override

public void onLayoutChange(View v,

int left, int top, int right, int bottom,

int oldLeft, int oldTop, int oldRight, int oldBottom) {

if (bottom < oldBottom) {

final int lastAdapterItem = mAdapter.getItemCount() - 1;

recyclerView.post(new Runnable() {

@Override

public void run() {

int recyclerViewPositionOffset = -1000000;

View bottomView = linearLayoutManager.findViewByPosition(lastAdapterItem);

if (bottomView != null) {

recyclerViewPositionOffset = 0 - bottomView.getHeight();

}

linearLayoutManager.scrollToPositionWithOffset(lastAdapterItem, recyclerViewPositionOffset);

}

});

}

});

}

Kutae Shaw answered 2020-02-14T05:10:08Z

6 votes

我发现postDelayed是不必要的，并且当回收站滚动到项目中间的某个位置时，使用适配器位置并不能解决问题。 我达到了想要的外观：

recycler.addOnLayoutChangeListener((view, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom) -> {

if (bottom < oldBottom) {

messageRecycler.scrollBy(0, oldBottom - bottom);

}

})

mp501 answered 2020-02-14T05:12:18Z

3 votes

这可行。

private RecyclerView mRecyclerView;

private RecyclerView.Adapter mAdapter;

private LinearLayoutManager mManager;

...

mManager = new LinearLayoutManager(this);

mRecyclerView.setLayoutManager(mManager);

(initialize and set adapter.)

mRecyclerView.addOnLayoutChangeListener(new View.OnLayoutChangeListener() {

@Override

public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {

if (bottom < oldBottom) scrollToBottom();

}

});

private void scrollToBottom() {

mManager.smoothScrollToPosition(mRecyclerView, null, mAdapter.getItemCount());

}

wonsuc answered 2020-02-14T05:12:38Z

2 votes

recyclerView.smoothScrollToPosition(recyclerView.getAdapter().getItemCount());

sdelvalle57 answered 2020-02-14T05:12:55Z

1 votes

在支持库版本27.0.1中可以正常工作

清单中没有任何内容。

val currentScrollPosition = 0

recyclerView.addOnScrollListener(object : RecyclerView.OnScrollListener() {

override fun onScrolled(recyclerView: RecyclerView?, dx: Int, dy: Int) {

super.onScrolled(recyclerView, dx, dy)

currentScrollPosition = recyclerView.computeVerticalScrollOffset() + recyclerView.computeVerticalScrollExtent()

}

override fun onScrollStateChanged(recyclerView: RecyclerView?, newState: Int) { }

})

storyList.addOnLayoutChangeListener { view, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom ->

if (bottom < oldBottom) {

if (currentScrollPosition >= recyclerView.computeVerticalScrollRange()) {

recyclerVIew.post {

recyclerView.overScrollMode = RecyclerView.OVER_SCROLL_NEVER

recyclerView.smoothScrollBy(0, recyclerView.computeVerticalScrollRange() - recyclerView.computeVerticalScrollOffset() + recyclerView.computeVerticalScrollExtent())

}

}

} else {

recyclerView.overScrollMode = RecyclerView.OVER_SCROLL_ALWAYS

}

}

minjung Ahn answered 2020-02-14T05:13:21Z

0 votes

将RecyclerView绑定到NestedScrollView中

android:layout_width="match_parent"

android:layout_height="match_parent">

android:id="@+id/recycler_view"

android:layout_width="match_parent"

android:layout_height="wrap_content"/>

Karthikeyan answered 2020-02-14T05:16:38Z

0 votes

layoutManager.scrollToPositionWithOffset(chatMessageAdapter.getItemCount()-1，0);

Ramesh R answered 2020-02-14T05:16:58Z