android 軟鍵盤遮擋dialog內容

方案一：可將dialog show之後設置位於軟鍵盤和頂部之間

      Window window = getWindow();
        WindowManager.LayoutParams params = window.getAttributes();
        params.y = 0;
        params.x = 0;
        params.gravity =  Gravity.CENTER;
        window.setAttributes(params);