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How to make the log output in real time when Android compiles the kernel?[android 11][qcom 8155 gvmq][ninja 1.10.2.git][android ninja 1.9.0.git]backgroundIt takes more than ten or twenty minutes to compile make bootimage for development. During this period, there is no log real-time output for a long time. It looks like it is output after compi ...

preface Each application initializes an application class when it is started. We can do some initialization operations in this class, such as the initialization of a third-party sdk. After the component project is implemented, different business modules also need to do some initialization operations when the application is started. This involv ...

1, How kotlin throws exceptionsException handling in Kotlin is similar to that in Java or other languages. A function can end normally or throw an exception when an error occurs. The function caller catches the exception and handles it; If not, the exception is thrown up the call stack again.The basic form of exception handling statements in Ko ...

AVRCP connection status is abnormal Android version: android-9 (P version) Problem phenomenon: disconnect the device and fail to issue Bluetooth adapter.action for a long time_ CONNECTION_ STATE_ The changed broadcast switches the connection status to Bluetooth adapter.state_ DISCONNECTED After checking the log, it can be found that all m ...

Have you ever wanted to add new functions or properties to the API of a class? You can usually solve this problem by inheriting the class or creating a new function that takes an instance of the class as a parameter. Java programming language usually uses Utils class to solve such problems, but this method does not support automatic code com ...

Room It is the encapsulation of SQLite, which makes the operation of Android database very simple. It is also my favorite Jetpack library so far. In this article, I will tell you how to use and test the Room Kotlin API, and I will share its working principle during the introduction. We will be based on Room with a view codelab Explain it to ...

1, IntroductionRecently, due to work, I came into contact with the framework a little more. It is inevitable to deal with Binder and sort out some relevant knowledge, but I was still a little flustered when preparing to write this article. Moreover, the complexity of the whole Binder mechanism can not be described clearly in a few words. I'm al ...

brief introduction TTS is text to speech 1, Use the SDK or API provided by a third party, such as iFLYTEK, Baidu, Alibaba, etc; 2, Use the API of Android system: texttospeech API documentation in TextToSpeech (official): TextToSpeech  |  Android Developers , record the detailed introduction of each method, variable and constant; 3, Use of ...

Click is the most common and important means of interaction. The following describes how to click RecyclerView settings. Here is a common implementation, namely listener mode.When a user clicks an item, the app can respond accordingly. Here we use the method of adding click listeners to achieve this effect.Listener mode is widely used in Androi ...

Full code Gitee address: Kotlin Demo: 15 day kotlin learning plan Day 5 learning content code: Chapter5 catalogue preface definition Application scenario Knowledge point 1: static registration broadcast Knowledge point 2: dynamic registration broadcast Knowledge point 3: Customize global broadcasting preface BroadcastReceiver is o ...