Android headset line control details, Bluetooth headset button monitoring (similar to cool dog line control effect)
When the media button of the headset is clicked, the Android system sends a broadcast. The broadcast carries an Intent with the Action MEDIA_BUTTON. After listening to the broadcast, you can obtain the click events of the
service to provide the winning phone number. We will handle it as soon as possible.10. Do I need to log on to the card collecting activity?You do not need to log on.Uc set Olympic hero card redeem prize introduction:As shown above, when all your hero cards are full, you can redeem one of the Meilan metal mobile phones, and you are obligated to receive the following prizes: meizu mobile phone, Meizu wireless headset, and Meilan mobile phone.8-12 cards
1. On the Apple 5s desktop we found a "Settings" icon, click to enter, as shown in the following figure.
2. Then you will see a "Bluetooth" menu, and we click on it to enter.
3. Now we can switch to "Bluetooth" operation, then the phone will automatically search next to the Bluetooth device,
4. When our Bluetooth headset is connected to the Apple 5s we first have to match the phone with the Bluetooth head
We know that in all computers are like this, we plug in headphones, the computer will automatically switch to the headset mode, but if unplug the headset, our computer voice does not shut down, it will be directly out of the outside, so it is very easy to affect the people around. This is especially true for some of the users who use it at work. So what can be solved? Below, small series to introduce a meth
To connect to your Bluetooth headset, follow these steps:
1. As shown in the picture, we click on the "app" icon inside and open it in detail as follows.
2. Furthermore, we click on the "Set" icon to open the entry.
3. Select "Connect" and then click "Bluetooth".
4. After entering we need to turn on the "Bluetooth" function, and then we connect the Bluetooth headset.
First, we have to open the Bluetooth headset, otherwise the following operation is useless.As shown in the following figure, we can move the Bluetooth headset switch up and down in the Bluetooth headset, of course we can (long hold down the listening key for about 3-5 seconds, the LED becomes blue and often light to let go) the details are shown below.Two, OK now
Customer requirements
After the headset is pulled out during FM playback, The FM app displays a prompt box Indicating "unplug the headset and stop the FM", and then automatically close
Modify fmradioservice. Java1. Add the following import to display the toast
/// AAAAA add start
Import Android. widget. Toast;
/// AAAAA add endpublic class fmradioservice extends Service implements fmrecorder. onrecordersta
After the customer asks the FM to unplug the headset during playback, the fm app displays a prompt box Indicating "unplug the headset and stop the Fm", and then automatically closes
Modify FMRadioService. java1. Add the following import to display the toast/// AAAAA add startImport android. widget. Toast;/// AAAAA add endPublic class FMRadioService extends Service implements FMRecorder. OnRecorderStateChang
Airpods wireless headset and IPhone7 pair use the tutorial, not too familiar with the friend to learn.
Airpods with the iphone is very simple, the following is the specific method steps:
1, first the iphone 7/7 plus Bluetooth features open, as shown in the following figure.
2, put the Airpods headset in the charging box, and open the lid, near any open Bluetooth IPHONE7/7 Plus, the screen will appear
PS with a white towel (paper napkin), with hot water bubble (you can endure the heat, careful scald oh) half wring dry, warm, follow the earphone line clamp a wipe, should line ah, I tried
Action method:
1, the preparation of some hot water, the water temperature to reach their maximum temperature can endure (water temperature not too high, may use a towel hand-held operation can be).
2. Take a towel, soak it with hot water, and then half wring dry, while it is warm, evenly and firmly along
In the Millet Bluetooth headset accessories have a charge line, but the powder division found no charger, this as long as the use of mobile phone charger can be, this use of millet mobile phones or other smart phones can be.
With the help of the Millet Bluetooth headset charger line, Android mobile power adapter, you can charge the Millet bluetooth headset.
Control music playback with headphone cable
1, the main function of a few keys, but also we commonly used include the volume Plus, play/pause keys, volume reduction keys,
2, all the volume on the Apple phone can be controlled by the volume key above, including the addition and subtraction in the control and the next to the Apple phone volume plus and minus is the same effect, as follows.
3, click the Headphone line control function key Groove key, you can control the song playback and pau
1. The following figure shows our notebook Bluetooth is normally open, if not open their own first open, and then we right-click the Bluetooth icon, click on the pop-up menu "add Device" specific as shown below.
2. Then in the pop-up to add Bluetooth interface we click on their own to add Bluetooth
3. The system prompts you to connect to the Bluetooth adapter, as shown in the following illustration.
4. If there's no problem, I'll let you know. Adding Bluetooth is successful, as shown in
It is mainly included in the C source file OS _core.c.1. uC/OS-II Task Scheduling (1) uC/OS-II Scheduling Algorithm
UC/OS-II uses the priority-based scheduling algorithm, always select the current ready state of the highest priority task scheduling. UC/OS-II is a preemptible, real-time OS that allows new job scheduling
1. uc/os-ii File structure2. UC/OS-II ComponentsUc/os-ii can be broadly divided into the core of the system (including task scheduling), task management, time management, multitasking synchronization and communication, memory management, CPU migration and other parts.(1) Core (OSCORE.C): UC/OS-II processing core, including initialization, start-up, interrupt mana
For some time recently, I wanted to learn to transplant Ucgui. On the network to find a large number of transplant materials and learning tutorials, coupled with their continuous efforts, the successful completion of the transplant. Now will learn the problems encountered and has been recorded, the aspect of their own browsing, but also for beginners to provide a shortcut. Uc/gui Basic functions:
display text on the LCD
Gui_dispstring ("
A dazzling effect on the UC browser, UC browser Effect
Effect description:
This effect will forcibly remove the web site input box and the menu bar at the bottom of the UC browser, so that the web page will occupy the entire mobile phone interface. It looks like an APP.
In the lower-right corner of the browser interface, an up sign is displayed to bring up a simp
1. application development steps
(1) The total header file containing the uC/OS-II, Des. h;
(2) define the task stack size and task stack;
(3) assigning task priorities;
(4) implement the task function;
(5) Call the osinit () function to initialize the data structure of uC/OS-II;
(6) create user task, start uC/OS-II;2. Compile task Functions
The user's task funct
1. c executable code structure
(1) code segment. Text: The machine command that stores CPU execution. Generally,. text can be shared and read-only.
(2) Data Segment. Data:. rodata (constant data),. rwdata (initialized global variables, static variables ).
(3) uninitialized data segment. BSS: uninitialized global and static variables.
(4) stack. STACK: stores function parameters, local variables, and context During task switching.
(5) Heap. Heap: used for dynamic memory allocation.2. Task Structu
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