Programming VIP

Objective: to reduce the number of layout layers Effect: reduce the number of nodes in the view tree, speed up the drawing of the view, and improve the UI performance# When to use: The child view does not need to specify any layout properties for the parent viewIf you need to embed a layout (or view) in LinearLayout, and the root node of this ...

1. setState synchronization? Asynchronous? In the class component of React, we can use the setState method to update the state. But sometimes you can't get the latest data after using setState. In fact, the execution process and code of setState in React are synchronized, which is only caused by the performance optimization mechanism of React ...

Who is consuming the battery power of your mobile phone The applications we write do not directly consume the battery power of a mobile phone, but rather use the hardware modules of the mobile phone to consume the power. Examples: CPU, WIFI module, GPS module, NetWork module, WakeLock module, audio and video module, Screen... Power and Applic ...

0. Preface I have nothing to do recently. I'm thinking of doing some work. I happened to see it yuanguobin01 The author wrote a series of articles on the improvement ideas of LEGO loam. After reading this part, it is regrettable that the author only provided some preliminary ideas without systematic learning code. Therefore, this paper intends ...