以编程方式关闭键盘在Android 10上不起作用

问题描述

我已经在我的API 19真实设备和API 23模拟器上对其进行了测试，并且此方法可以正常工作：

if(activity != null){
            View view = activity.getCurrentFocus();
            if (view != null){
                InputMethodManager inputManager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
                if(inputManager != null){
                    inputManager.hideSoftInputFromWindow(view.getwindowToken(),0);
                }
            }
        }

但是，它不能在我的Pixel 4a（android 10）真实设备上运行。有人知道如何在Android 10上以编程方式关闭键盘吗？

解决方法

尝试以下静态方法

public static void hideSoftKeyboard(Activity activity) {

    InputMethodManager inputMethodManager =
            (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);

    View currentFocus = activity.getCurrentFocus();

    if (inputMethodManager != null) {
        IBinder windowToken = activity.getWindow().getDecorView().getRootView().getWindowToken();
        inputMethodManager.hideSoftInputFromWindow(windowToken,0);
        inputMethodManager.hideSoftInputFromWindow(windowToken,InputMethodManager.HIDE_NOT_ALWAYS);

        if (currentFocus != null) {
            inputMethodManager.hideSoftInputFromWindow(currentFocus.getWindowToken(),0);
        }
    }

}

,

根据您所在的位置，可以使用以下方法之一：

boolean hideSuccess = KeyboardUtils.hideKeyboard(activity);

// or
boolean hideSuccess = KeyboardUtils.hideKeyboard(fragment);

// or
boolean hideSuccess = KeyboardUtils.hideKeyboard(editText); // It's recommended

KeyboardUtils.java

import android.app.Activity;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;

import androidx.fragment.app.Fragment;

/**
 * @author aminography
 */
public class KeyboardUtils {

    public static boolean hideKeyboard(Activity activity) {
        InputMethodManager imm = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
        if (imm != null) {
            View focus = activity.getCurrentFocus();
            if (focus == null) focus = new View(activity);
            return imm.hideSoftInputFromWindow(focus.getWindowToken(),0);
        } else {
            return false;
        }
    }

    public static boolean hideKeyboard(Fragment fragment) {
        InputMethodManager imm = (InputMethodManager) fragment.requireContext().getSystemService(Activity.INPUT_METHOD_SERVICE);
        if (imm != null) {
            View focus = fragment.requireActivity().getCurrentFocus();
            if (focus == null) focus = new View(fragment.requireContext());
            return imm.hideSoftInputFromWindow(focus.getWindowToken(),0);
        } else {
            return false;
        }
    }

    public static boolean hideKeyboard(EditText editText) {
        InputMethodManager imm = (InputMethodManager) editText.getContext().getSystemService(Activity.INPUT_METHOD_SERVICE);
        if (imm != null) {
            return imm.hideSoftInputFromWindow(editText.getWindowToken(),0);
        } else {
            return false;
        }
    }
}

,

在清单上添加任务权限。

<uses-permission android:name="android.permission.GET_TASKS"/>