Android判斷輸入法是否彈出

參考：https://blog.csdn.net/stwstw0123/article/details/47108337

root爲所在佈局文件的根佈局的對象綁定

root = view.findViewById(R.id.content);

這裏我們爲了更方便的使用，將做個操作封裝成一個方法：

public boolean getKeybordStatus(){
        final int[] screenHeight = new int[1];
        final int[] myHeight = new int[1];
        final int[] heightDiff = new int[1];
        root.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                screenHeight[0] = root.getRootView().getHeight();
                myHeight[0] = root.getHeight();
                heightDiff[0] = screenHeight[0] - myHeight[0];
                Log.e("onGlobalLayout", "screenHeight=" + screenHeight[0]);
                Log.e("onGlobalLayout", "myHeight=" + myHeight[0]);
            }
        });
        if (heightDiff[0] > 100) {
            Log.e("onGlobalLayout", "Soft keyboard showing"+heightDiff[0]);
            return true;
        } else {
            Log.e("onGlobalLayout", "Soft keyboard hidden"+heightDiff[0]);
            return false;
        }
    }