acceleration unit m/s2 of the three axes.Int type_all a constant describing all sensor types.
// Used to list all sensorsInt type_gravity a constant describing a gravity sensor type.
// Gravity Sensor
Int type_gyroscope a constant describing a gyroscope
The first Google summer College Students' blog sharing competition-2010 andriod
I saw a gravity sensor app on HTC's Windows Mobile phone on the Internet.Program"The ball of the pain", address: http://v.youku.com/v_show/id_XMTkxOTc0MDg0.html recently I am learning Android system development, a little eager to try the feeling, want to do. As a result, I started to prepare for the work, so I did not mention
returns the acceleration unit m/s2 of the three axes.Int type_all a constant describing all sensor types. // used to list all sensorsInt type_gravity a constant describing a gravity sensor type. // gravity SensorInt type_gyroscope a constant describing a gyroscope sensor ty
Add a handler function when gravity changesThe function dosomething (x, y, z) that is called when the listener is created is a method that is defined by itself.The listener calls this method when the phone's tilt direction changes.All we have to do is populate the method to do our own processing when gravity changes.When x=y=0, the phone is placed in a horizontal position.When X=0 and Y>0, the top of the ph
Gesture operation can be said to be a smart phone charm, the first two sections to explain the two interesting gestures, put them in the game, greatly enhance the game's playful and interesting. This section will continue to introduce another magical thing about smartphones: sensors.
first, what is the sensor
The so-called sensor is to be able to detect such as light, heat, temperature,
Li huaming himiOriginal, reprinted must be explicitly noted:Reprinted from[Heimi gamedev block]Link: http://www.himigame.com/android-game/344.html
Many kids shoes say that after my code is run, clicking home or back will cause a program exception. If you have encountered this, you certainly haven't carefully read the himi blog, in article 19th, himi specifically wrote about the causes and solutions of these errors. I have added my remarks on this blog, and my provincial children's shoes are a
The development steps of the gravity sensor and the direction sensor are similar. After clarifying the values of X, Y, and Z in the period, you can program based on their changes. First, let's look at a figure.
Assume that the local acceleration value is G.When the mobile phone is facing up, the value of Z is Q, and the value of Z is-G.When the right side of the
VIVO-X9 mobile phone sensor mode in the hand, the rotation effect is incorrect, the results found that Gravity sensor returned the wrong data, and other models returned by the reverse.Refer to the Gravity description:
A three dimensional vector indicating the direction and magnitude of
With a wide range of sensors in Android development, Google offers 11 sensors for use in layers: acceleration, magnetism, direction, gyroscope, light, pressure (back to current pressure), temperature, proximity (detecting distance between objects and phones), gravity, linear acceleration, and rotational vectors.Before using the sensor, the class interface in the project needs to be Sensoreventlistener, and
It's a long way to go, not just to survive but to love.This content: Android Gravity sensorFirst,Sensormannager sensor Management Objects1. Get SensormannagerAll the sensors in the phone need to be accessed via Sensormannager, and the Getsystemservice (Sensor_service) method can be used to get the sensor management object of the current phone.SM = (Sensormanager)
Cocos2d-x Study Notes (5) CCLayer analysis and input event processing (touch, gravity sensor, button)
Introduction
In the previous section, we briefly introduced CCScene. In this section, we will continue to look at another core component CCLayer, which is similar to CCScene and is used to store other nodes, CCLayer should be included in CCScene. Old rules, we can see from the code.
Source code analysis
Cl
/dev/bma220 device node is registered in the underlying device driver.
Other function calls, such as read () and write (), all use the file descriptor FD to operate the G-sensor device.
1.2 JNI (Java Native Interface)
The JNI layer can be considered as a supporting role in the entire architecture. In a nutshell, it completes a task that converts the C ++ language to the Java language. The JNI layer provides a series of interfaces for the Java Framewor
Gravity sensing is mainly used in game development. This effect is very good! It is mainly three axes. It is easy to understand: that is facing up, the value is positive, and the value is down negative! I have tested this effect, because gravity sensing can be realized on the mobile phone, so no. Sorry! Reprinted please indicate the source: http://blog.csdn.net/wdaming1986/article/details/6752232
1. MainAc
After version 3.0, Cordova implements the device API via plug-in mode, and the CLI's plugin command allows you to add or remove plugins:$ Cordova Plugin Add org.apache.cordova.device-motion $ cordova plugin ls [' org.apache.cordova.device-motion ' ] $ Cordova Plugin RM org.apache.cordova.device-motionThis command can be applied to all platforms, but modifying platform-specific configuration settings requires the use of the following methods
Recently, I have been working on a problem about gravity sensing, which involves the mobile phone's gravity sensing. I started to use a real machine for testing. The results have been tested for a long time and are not satisfactory, it has never been effective. In view of the trouble of using a real machine and connecting lines or something, I am going to use a simulated
I. Summary
Bma220 gravity sensor driver involves three files: bma220.c bma220.h bma220_driver.c. Bma220.c is an API that contains the bma220 driver. bma220.h contains the bma220 Register address, and bma220_driver.c is the I2C device driver of bma220. Here we will analyze and modify the bma220_driver.c.
Ii. bma220_driver.c modification records
--- Bma220_driver.c2012-06-14 19:56:50. 000000000 + 0800 + + b
gravitational acceleration of 9.7997.Now assume that the gravity of the position is 9.8:, then:Put the phone flat on the table, the x-axis and the y-axis of the gravitational acceleration of the 0,z axis of the value of 9.8;The mobile phone is erected to prevent (completely upright), then the x-axis and z-axis of the gravitational acceleration of the 0,y axis is more than 9.8 of the value of gravity;When t
Do gravity induction friends may be able to use, I write up here to sometimes forget that I can also look at, because I do not think that learning things can be a lifetime remember very well, so sometimes it is convenient for their own line, to write their own blog, haha.To do Unity's gravity-sensing game, we need to use a parameter like this: Input.acceleration, which is an Input attribute of type VECTORS3
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