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1 Toast toast = new Toast(mActivity); 2 View view = LayoutInflater.from(mActivity).inflate(R.layout.my_center_cache_dialog, null); 3  4   LinearLayout layout_my_dialog_cahce = (LinearLayout) view.findViewById(R.id.layout_my_dialog_cahce); 6   layout_my_dialog_cahce.getBackground().setAlpha(95); 7  8   toast.setView(view);10   toast.setGravity(Gravity.CENTER, 0, 0);12   toast.show();