监听键盘显示或隐藏事件的android [英] Listen for keyboard show or hide event in android

问题描述

我想事件的键盘显示或隐藏时发生听。在Android是这可能吗？我不是想弄清楚如果键盘被显示或隐藏，当我开始我的活动，我想监听事件。

I am trying to listen for events that occurs when the keyboard is shown or hidden. Is this possible in Android? I am not trying to figure out if the keyboard is shown or hidden when I start my activity, I would like to listen for events.

推荐答案

尝试下面code： -

Try below code:-

// from the link above
@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);


    // Checks whether a hardware keyboard is available
    if (newConfig.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_NO) {
        Toast.makeText(this, "keyboard visible", Toast.LENGTH_SHORT).show();
    } else if (newConfig.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_YES) {
        Toast.makeText(this, "keyboard hidden", Toast.LENGTH_SHORT).show();
    }
}

或

boolean isOpened = false;

 public void setListnerToRootView(){
    final View activityRootView = getWindow().getDecorView().findViewById(android.R.id.content); 
    activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {

            int heightDiff = activityRootView.getRootView().getHeight() - activityRootView.getHeight();
            if (heightDiff > 100 ) { // 99% of the time the height diff will be due to a keyboard.
                Toast.makeText(getApplicationContext(), "Gotcha!!! softKeyboardup", 0).show();

                if(isOpened == false){
                    //Do two things, make the view top visible and the editText smaller
                }
                isOpened = true;
            }else if(isOpened == true){
                Toast.makeText(getApplicationContext(), "softkeyborad Down!!!", 0).show();                  
                isOpened = false;
            }
         }
    });
}

或

低于code，你必须扩展的LinearLayout。

for below code you have to extend LinearLayout.

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    final int proposedheight = MeasureSpec.getSize(heightMeasureSpec);
    final int actualHeight = getHeight();

    if (actualHeight > proposedheight){
        // Keyboard is shown
    } else {
        // Keyboard is hidden
    }

    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

见下面的链接： -

see below link:-

<一个href="http://stackoverflow.com/questions/4312319/howto-capture-the-virtual-keyboard-show-hide-event-in-android">Howto捕捉虚拟键盘显示/隐藏事件的Andr​​oid？

这篇关于监听键盘显示或隐藏事件的android的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！