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Samsung has unveiled it’s highly anticipated Galaxy Fold device and Huawei Mate X. The device is an active-matrix light-emitting diode (AMOLED) screen that allows a higher definition display. When unfolded it reveals an 8 inch OLED tablet screen. Google announced its support for foldable screens before Samsung announced its foldable device. The foldable devices will certainly require developers to develop apps which offer multiple screen sizes and configurations. Android Pie offered the support of multi-resume functionality but it was up to the app developers to opt in.