显示键盘后调整ListView大小

// 监听焦点变化
editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
    @Override
    public void onFocusChange(View v, boolean hasFocus) {
        if (hasFocus) {
            // 键盘显示
            listView.post(new Runnable() {
                @Override
                public void run() {
                    // 获取键盘高度
                    int keyboardHeight = getKeyboardHeight();

                    // 计算ListView应显示的高度
                    int listViewHeight = listView.getHeight() - keyboardHeight;

                    // 设置ListView的高度
                    ViewGroup.LayoutParams layoutParams = listView.getLayoutParams();
                    layoutParams.height = listViewHeight;
                    listView.setLayoutParams(layoutParams);
                }
            });
        } else {
            // 键盘隐藏
            // 恢复ListView的原始高度
            ViewGroup.LayoutParams layoutParams = listView.getLayoutParams();
            layoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT;
            listView.setLayoutParams(layoutParams);
        }
    }
});

// 获取键盘高度
private int getKeyboardHeight() {
    Rect rect = new Rect();
    View rootView = getWindow().getDecorView();
    rootView.getWindowVisibleDisplayFrame(rect);
    int screenHeight = rootView.getHeight();
    int keyboardHeight = screenHeight - rect.bottom;
    return keyboardHeight;
}