Android 将“回收器”视图中的编辑文本滚动到屏幕外时隐藏键盘

我有一个包含

EditText

子元素的

RecyclerView

。当所选的

EditText

滚动到屏幕外时，我想隐藏软键盘。如何判断

EditText

何时不再显示在屏幕上？是否有一些事件监听器可以附加到

EditText

元素来告诉我

实现

onTouchListener

如下：

yourRecycleView.setOnTouchListener(new OnTouchListener() {

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

        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);

        return false;
    }
});

我的解决方案：

editText.setOnFocusChangeListener((v, hasFocus) -> {
            Handler handler = new Handler();
            if (!hasFocus) {
                handler.postDelayed(() -> {
                    if (!editText.hasFocus()) {
                        InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
                        imm.toggleSoftInput(0, 0);
                    }
                }, 200);

            }
        });

---

这就是我的工作原理：我使用

RecyclerView.OnScrollListener

和

PublishRelay

来消除抖动事件

class RecyclerViewActivity : Activity(){
    ...
    private val scrollableRelay = PublishRelay.create<Unit>()
    private val disposable = CompositeDisposable()


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        recyclerView.addOnScrollListener(object: RecyclerView.OnScrollListener(){
            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
                scrollableRelay.accept(Unit)
            }
        })
        scrollableRelay
            .debounce(100, TimeUnit.MILLISECONDS)
            .subscribe({
                if (currentFocus == recyclerView) {
                    hideKeyboard()
                }
             })
            .addTo(disposable)
    }

    override fun onDestroy() {
        disposable.onDestroy()
    }
}

---

Kotlin解决方案，在以下情况下关闭键盘：

• 聚焦的

  视图

  从

  回收视图

• 或者，如果用户按Enter键，操作系统无法在

  回收视图

  中找到需要关注的内容

//当键盘不再关注recyclerview中的任何内容时，请关闭键盘
recyclerView.viewTreeObserver.addOnGlobalFocusChangeListener{{}，newFocus:View？->
if（newFocus==recyclerView | | recyclerView！in（newFocus？.祖先？：emptySequence（））{
recyclerView.context.inputService.hideSoftInputFromWindow（recyclerView.windowToken，0）
}
}
val Context.inputService get（）=作为InputMethodManager的getSystemService（Context.INPUT\u方法\u服务）
val View.祖先：序列get（）=generateSequence（this）{it.parent as？View}

我必须将edittext.getWindowToken（）更改为v.getWindowToken（），因为编辑文本是RecycleView适配器的私有成员。然而，这很有效。谢谢。如何删除突出显示的关于“执行单击”的警告不会被覆盖此解决方案对应用程序来说不是太过了吗？每当您触摸视图时，它会引发事件？如果我在滚动之前隐藏键盘，您的解决方案会显示键盘

class RecyclerViewActivity : Activity(){
    ...
    private val scrollableRelay = PublishRelay.create<Unit>()
    private val disposable = CompositeDisposable()


    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        recyclerView.addOnScrollListener(object: RecyclerView.OnScrollListener(){
            override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
                scrollableRelay.accept(Unit)
            }
        })
        scrollableRelay
            .debounce(100, TimeUnit.MILLISECONDS)
            .subscribe({
                if (currentFocus == recyclerView) {
                    hideKeyboard()
                }
             })
            .addTo(disposable)
    }

    override fun onDestroy() {
        disposable.onDestroy()
    }
}

fun Disposable.addTo(compositeDisposable: CompositeDisposable) {
    compositeDisposable.add(this)
}

fun Activity.hideKeyboard() =
    currentFocus?.let {
        val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
        imm.hideSoftInputFromWindow(it.windowToken, 0)
    }

// dismiss the keyboard when it is no longer focusing on anything inside the recyclerview
recyclerView.viewTreeObserver.addOnGlobalFocusChangeListener { _, newFocus: View? ->
    if (newFocus == recyclerView || recyclerView !in (newFocus?.ancestors ?: emptySequence())) {
        recyclerView.context.inputService.hideSoftInputFromWindow(recyclerView.windowToken, 0)
    }
}

val Context.inputService get() = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager

val View.ancestors: Sequence<View> get() = generateSequence(this) { it.parent as? View }