Dialog dialog = new Dialog(this);dialog.setContentView(R.layout.dialog_layout);dialog.setTitle("Custom Dialog"); //獲得當前窗體Window window = dialog.getWindow();//重新設置WindowManager.LayoutParams lp = dialogWindow.getAttributes();window .setGravity(Gravity.LEFT | Gravity.TOP);lp.x = 100; // 新位置X坐標lp.y = 100; // 新位置Y坐標lp.width = 300; // 寬度lp.height = 300; // 高度lp.alpha = 0.7f; // 透明度// dialog.onWindowAttributesChanged(lp);//(當Window的Attributes改變時系統會調用此函數)window .setAttributes(lp);dialog.show();