检测软键盘隐藏状态

问题描述：

每次软键盘状态从显示更改为隐藏时，都希望输入Toast文本.在这里，我只想从EditText中选择getText()，每次单击EditText时，都必须打开软键盘，然后按回车键或返回后，文本必须显示为Toast

Want to Toast a text everytime when soft keyboard state changes from shown to hidden. Here I just want to getText() from EditText and everytime I click on EditText the soft Keyboard must open and after pressing back or return the text must be shown as Toast

预先感谢

答

没有用于键盘状态检测的直接侦听器，因此您需要以下一些编程实现

There is no direct listener for keyboard state detection so you need some programatic implementation as below

private boolean wasKeyboardOpen = false;

try {
        activityMainView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {

                Rect r = new Rect();
                activityMainView.getWindowVisibleDisplayFrame(r);

                int heightDiff = activityMainView.getRootView().getHeight() - (r.bottom - r.top);
                if (heightDiff > 100) {
                    wasKeyboardOpen = true;
                    // kEYBOARD IS OPEN

                } else {
                    if (wasKeyboardOpen) {
                        wasKeyboardOpen = false;
                        // Do your toast here

                    }
                    // kEYBOARD IS HIDDEN
                }
            }
        });
    } catch (Throwable e) {
        e.printStackTrace();
    }

检测软键盘隐藏状态

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