上面给出的所有解决方案(OnFocusChangeListener中的InputMethodManager交互)。onFocusChange监听器附加到您的EditText工作良好，如果您在活动中有单个编辑。

在我的例子中，我有两个编辑。

 private EditText tvX, tvY;
 protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
 tvX.setOnFocusChangeListener(this);
    tvY.setOnFocusChangeListener(this);

@Override
public void onFocusChange(View v, boolean hasFocus) {       
    InputMethodManager imm =  (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    if(tvX.hasFocus() || tvY.hasFocus()) {            
        imm.showSoftInput(v, 0);            
    } else {
        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);         
    }       
};

我观察到onFocusChange被触发为tvX与hasFocus=true(键盘显示)，但随后为tvY与hasFocus=true(键盘隐藏)。最后，看不到键盘了。

一般解决方案应该有正确的语句在if“显示键盘，如果EditText文本有焦点”

只要在manifest文件中添加android:windowSoftInputMode="stateHidden"…

我使用这个扩展函数来显示Kotlin的键盘。

fun EditText.requestFocusWithKeyboard() {
    post {
        dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_DOWN, 0f, 0f, 0))
        dispatchTouchEvent(MotionEvent.obtain(SystemClock.uptimeMillis(), SystemClock.uptimeMillis(), MotionEvent.ACTION_UP, 0f, 0f, 0))
        setSelection(length())
    }
}

你可以把它叫做:

editText.requestFocusWithKeyboard()

除了非常方便之外:

您不必担心在所有可能的情况下关闭它，例如当您使用InputMethodManager.SHOW_FORCED导航返回时。 除了请求焦点，它还设置选择(光标到文本末尾)。

我做了这个帮助课。 只需要传递context和你想要聚焦的View show keyboard和hide keyboard。 我希望这能有所帮助。

public class FocusKeyboardHelper {

private View view;
private Context context;
private InputMethodManager imm;

public FocusKeyboardHelper(Context context, View view){
    this.view = view;
    this.context = context;
    imm = (InputMethodManager) context.getSystemService(context.INPUT_METHOD_SERVICE);
}

public void focusAndShowKeyboard(){

    view.requestFocus();
    imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);

}

public void hideKeyBoard(){
    imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}

}

 void requestFocus(View editText, Activity activity)
{
    try {
        editText.requestFocus();
        InputMethodManager imm = (InputMethodManager) a.getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
        activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
    } catch (Exception e) {
        e.printStackTrace();
    }

}

加上这一行也不要忘记

activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);

以下是我从Square得到的一个更可靠的解决方案:

fun View.focusAndShowKeyboard() { /** * This is to be called when the window already has focus. */ fun View.showTheKeyboardNow() { if (isFocused) { post { // We still post the call, just in case we are being notified of the windows focus // but InputMethodManager didn't get properly setup yet. val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager imm.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT) } } } requestFocus() if (hasWindowFocus()) { // No need to wait for the window to get focus. showTheKeyboardNow() } else { // We need to wait until the window gets focus. viewTreeObserver.addOnWindowFocusChangeListener( object : ViewTreeObserver.OnWindowFocusChangeListener { override fun onWindowFocusChanged(hasFocus: Boolean) { // This notification will arrive just before the InputMethodManager gets set up. if (hasFocus) { this@focusAndShowKeyboard.showTheKeyboardNow() // It’s very important to remove this listener once we are done. viewTreeObserver.removeOnWindowFocusChangeListener(this) } } }) } }

代码从这里开始。