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The view binding function can be enabled by module. To enable view binding in a module, add the viewBinding element to its build.gradle file, as shown in the following example android { viewBinding { enabled = true } } If you want to ignore a layout file when generating binding classes, add the tools:viewBindingIgnore="tr ...

View Workflow 1. Customize View process Start->Constructor-> onMeasure() ->onSIzeChanged() ->onLaout() ->onDraw() ->View State Change->Finish Constructor: View InitializationonMeasure: Measure View sizeonSizeChanged: Determine View SizeonLayout: Determine sub View layoutonDraw: Actual drawing content 2.MeasureSpec ...

background Sometimes when we pop up a PopupWindow, there is a requirement: Click the clickable control on the pop-up window to execute the click logic of the control; When the finger touches the blank area on the pop-up window or the non clickable control, the event will be transmitted to the view under the pop-up window, that is, it will n ...

1, Android signature mechanism The APK file signature is to ensure the authenticity of the APK source and that the APK file has not been modified; APK signature is based on Hash hash algorithm; Hash hash algorithm features: UniquenessFixed lengthIrreversible Common Hash three column algorithms: SHA-1 algorithm: secure ha ...

Key points of text objectives In daily development work, the most important understanding of the Interface for new children's shoes in the workplace is that it can be used for asynchronous communication and data callback. Today, I want to introduce today's topic the usage of abstract factory pattern in combination with the Interface usage foun ...

Function and principle of ThreadLocal We know that Java multithreading has security problems. The main reason is that multithreading accesses a shared data at the same time. Therefore, we have two main ideas to solve the multithreading problem: 1. Lock the shared data 2. Avoid multi-threaded operation of the same shared data Idea 1 is a com ...

Last year, there was a need to synchronize the time of the two terminals (client and server). The reason was that the system time of the two terminals was inconsistent, resulting in time difference after the implementation of the demand, resulting in business errors. Therefore, I took the time to sort out the knowledge related to time and date~ ...

1. Train of thought??? How to realize the function of multi language switching? Firstly, the basic operation flow is: the user selects the language, the multilingual input method adapts according to the language, and the interface adapts according to the selected language. So the question is, how does the input method apk choose the correspon ...

Android custom settings alarm clock Alarm time setting and display The layout of the alarm clock is very simple, that is, a simple time setting, so you can write a simple layout button yourself, but please repeat it. In addition, use the time dialog TimePickerDialog to set the time, and use Calendar to obtain the time of the current syste ...

Life Cycle of Activity Return to Stack Android is a taskTo manage an activity, a task is a collection of activities stored on a stack, also known as a return stack. A stack is a last-in-first-out data structure that, by default, places a new activity on the return stack and is at the top of the stack whenever we press the Back key or call ...