compass for android without internet

As mentioned above, the first parameter value passed back by the horizontal sensor represents the angle from which the mobile phone rotates around the Z axis, that is, the angle between the top of the mobile phone and the north. In the program, you can check the angle to implement the compass application. In fact, the idea is very simple. First prepare an image, which directs the pointer to the north. Then, a sensor is developed to detect the directio

Simple tutorial for Android-46th guns (a compass for custom controls)Preface As an innovative developer, you will sooner or later find that the built-in controls cannot satisfy your imagination. With the ability to expand existing views, build composite controls, and create unique new views, you can create a beautiful user interface that best suits your application workflow, this gives users the best experi

As mentioned above, the first parameter value passed back by the horizontal sensor represents the angle from which the mobile phone rotates around the Z axis, that is, the angle between the top of the mobile phone and the north. In the program, you can check the angle to implement the compass application. In fact, the idea is very simple. First prepare an image, which directs the pointer to the north. Then, a sensor is developed to detect the directio

In some of the previous blogs about Android, there are articles about custom controls. So, in this blog post, I'll show you how to implement the Compass view in a way that customizes the control. We will create a new compass view by extending the view class. It indicates the direction of the current orientation by displaying the traditional compass.First, realize

The compass has always been an indispensable and important role. The idea of developing a compass is very simple. The program first prepares a picture of the compass so that the pointer on the picture points to the north, and then develops the sensor in the detection direction, the program detects the number of degrees at the top of the phone that bypasses the ZF

] = "light sensor";Typename[sensor.type_pressure] = "pressure sensor";Typename[sensor.type_relative_humidity] = "type_relative_humidity";Typename[sensor.type_ambient_temperature] = "Type_ambient_temperature";Typename[sensor.type_gyroscope] = "gyroscope";Typename[0] = "Unknown";Typename[sensor.type_accelerometer] = "acceleration";Typename[sensor.type_magnetic_field] = "magnetism";Typename[sensor.type_orientation] = "direction";Typename[sensor.type_temperature] = "Temperature";Typename[sensor.type

Step 1:Create a new project Compass and import a Compass image to the res/drawable-hdpi directory. Step 2:Design the application UI, main. xml Copy codeThe Code is as follows: Android: orientation = "vertical" Android: layout_width = "fill_parent" Android: layout_height =

I just followed the video to learn the operation examples of sensors in Android, and made a very simple compass application using the direction sensor... Sensor functions are rarely used in work projects, so many of them don't know. Now I want to learn more about it as a step-by-step approach... First paste the software for final operation The image material used in it is a temporary PPT. It is very simple

The following are all converted from the android game programming entry-level classic. For more information, see the source. An interesting input method in the game is the accelerator. All Android devices require a 3D accelerator. Also, the compass function can sense the magnetic field direction and the mobile phone pitch angle. To obtain the accelerometer inform

(r.id.tv); Sensormanager = (Sensormanager) getsystemservice (Sensor_service); Get direction Sensor light sensor sensor.type_light value[0], representing light intensity sensor sensor = Sensormanager.getdefaultsensor (Sensor.type_orienta tion); Listener = new MyListener (); Sensormanager.registerlistener (listener, sensor, sensormanager.sensor_delay_game); } Private class MyListener implements sensoreventlistener{float startangle = 0; When sensor data changes,

Android practice simple tutorial-62nd guns (electronic Sensor exact Compass) Here we use the sensor provided by the mobile phone to implement a simple small example of the electronic compass. You can learn how to use the SensorManager class, SensorEventListener and its overwriting method. First, create a layout file: Then the Activity file:

Ane air native extension local expansion airProgramSource and local environmentCodeInteractive Technology. This article mainly analyzes the application of ANE technology by obtaining the Electronic Compass data of mobile devices. Azimuth: The moving direction relative to the positive North (in integer ). ========================================== Overview: I. iOS Azimuth 2. Android Azimuth

(values[1]);VALUES[2] = (float) math.todegrees (values[2]);if (Values[0] >=-5 Values[0] LOG.I (TAG, "true North");}else if (Values[0] >= 5 values[0] LOG.I (TAG, "Tohoku");}else if (Values[0] >= values[0] LOG.I (TAG, "Zhengdong");}else if (Values[0] >= values[0] LOG.I (TAG, "southeast");}else if ((Values[0] >= 175 values[0] LOG.I (TAG, "South");}else if (Values[0] >= -175 values[0] LOG.I (TAG, "Southwest");}else if (Values[0] >= -95 Values[0] LOG.I (TAG, "due West");}else if (Values[0] >=

This article examples for you to explain how to easily achieve the Android Compass function, share for everyone to reference. Specifically as follows: (1) The layout file is as follows: Picture required: (2) Mainactivity.java Import android.app.Activity; Import Android.content.Context; Import Android.hardware.Sensor; Import android.hardware.SensorEvent; Import Android.hardware.SensorE

Development engineerL Android Project managerL Android ArchitectL HTML5 System Architecture and developersFour , student base1) with Java Foundation;2) have C and C + + foundation better;3) All the understanding of the design pattern will be of great benefit to improving the listening effect;Five , training methodsFor 3 days, this course covers Android's underlying, An