Shulou(Shulou.com)06/02 Report--

Today, I will talk to you about how to analyze Android device options, which may not be well understood by many people. in order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

Now that you know about the sensor subsystem, the next section reviews a sample code that records audio on an Android phone, which runs on an Android device, and the onAccuracyChanged method does virtually nothing but adds a log entry on each call.

Android is a rich platform for application development, with many attractive user interface elements and data management capabilities. Android also provides a rich set of interface options. In this article, learn how to use Android's various sensor options to monitor your environment.

Want to build your own baby monitor? Do you want to answer the phone or open the door with your voice? Learn how to take advantage of the hardware capabilities of devices equipped with Android. For Java developers, the Android platform is an ideal platform for creating innovative applications by using hardware sensors.

We will learn some interface connection options available for Android applications, including using the sensor subsystem and recording audio clips. Which applications can be built with hardware capabilities equipped with Android devices? Any application that requires electronic monitoring and snooping can be built. Baby monitors, security systems, and even seismographs are fine.

In theory, you can't be in two places at once, but Android can do this in some feasible ways. Throughout this article, you must remember. The Android devices used are not limited to "mobile phones", but can also be devices deployed in a fixed location with a wireless network connection, such as EDGE or WiFi. Download the source file for the example in this article.

A novel thing about using the Android platform is that you can access some "good tools" inside the device. In the past, the ability to access the underlying hardware of the device was very tricky for mobile developers. Although the role of the Android Java environment is still a bridge between you and the device, the Android development team has brought many hardware features to the surface. The platform is an open source platform, so you are free to write code to implement your tasks.

If Android is not already installed, you can download Android SDK. You can also browse the contents of the android.hardware package and refer to the examples in this article. The android.media package contains classes that provide useful and novel functionality. Some of the hardware-oriented functions included in Android SDK are described below, and the SensorListener interface is the center of the sensor application. It includes two required methods:

The onSensorChanged (int sensor,float values []) method is called when the sensor value changes. This method is called only for sensors monitored by this application (see below for more information). The parameters of the method include an integer indicating the changed sensor and an array of floating-point values representing the sensor data itself. Some sensors provide only one data value, while others provide three floating-point values.

Both the direction and accelerometer sensors provide three data values. When the accuracy of the sensor changes, the onAccuracyChanged (int sensor,int accuracy) method is called. The parameter includes two integers: one represents the sensor and the other represents the new exact value of the sensor.

After reading the above, do you have any further understanding of how to analyze Android device options? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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