headset for android phone

This article is from http://blog.csdn.net/hellogv/ , the citation must be noted! The last time we talked about the communication between the Android phone and the BLE terminal, the most common ble terminal should be the ibeacon base station advocated by Apple. Ibeacon technology is based on BLE, which is characterized by the broadcast of external messages, mobile phones do not need to connect to the Ibeacon

Android 2.0 System Operation steps Tip: Restore the factory settings will empty the phone's built-in data, so please back up your personal data in advance. 1. In the "main interface" click the "Application Menu" below to enter the "application list" as shown in Figure 1-1; Figure 1-1 2. Locate and click "System Settings" in the "Application List", as shown in Figure 1-2; Figure 1-2 3.

Hello everyone, let's talk about some methods for Android to obtain IP addresses. In our development, we have determined whether the mobile phone is connected to the Internet or whether we want to obtain the IP address of the current mobile phone, of course, the sum of Wi-Fi connections The IP addresses of our 3g cards are certainly different. First, I tried the

Android system transplantation and debugging -------) how to modify the NFC module of the Android mobile phone so that NFC can be used in the black screen We all know that, without modifying the source code, NFC can only be used after unlocking. However, NFC cannot be used in two statuses: screen lock and black screen. However, a customer recently asked the mobil

1. The most common is that the unknown software installation failed. Unknown source, if not open we can only install the Android Market download software, if we download from the Internet can not be installed, the unknown source open method is selected in the mobile phone security settings. Workaround: Set installation permissions (figure) 2, the installation software prompts insufficient memory This

similar to the PC industry in the early 90 competition. The PC industry's "arms race" to the end with the emergence of XP system to WINDOWS7 system, the system and the application of hardware demand decline so that the entire industry into an inability to save the status quo, the PC will eventually return to provide more valuable applications and use of innovative scenarios.At the consumer level, the big screen is already a popular trend, even if the upcoming iphone 6 is likely to be difficult

Android Ril-javaRil-java is essentially a RIL agent that plays a forwarding role and is the starting point of the phone system in the Android Java conceptual space. In Ril-d's analysis, we know that Rild set up a listening socket interface, waiting for Ril-java connections. Once the connection is successful, Ril-java can initiate a request, wait for the reply, an

This article describes how anti-virus software and viruses obtain all notifications in the notification bar and use the information to kill applications. In the previous article, I used the root permission to perform a silent installation. Some people will say that the APK will be installed. Anyway, my brother has the Kingsoft mobile guard, and my brother has 360 active defense ...... They will send me a notification! After a new application is installed, the mobile

. Generally speaking, characteristic is the key to exchanging data between mobile phone and ble terminal, characteristic has more fields related to permission, such as permission and property, and the most commonly used is property, The BLE bluetooth module used in this paper has no standard characteristic permission. The characteristic property can set read-write properties by using a combination of bitwise operators, such as read| WRITE, read| write

[Java] // The first method returns pixels.Display display = getWindowManager (). getDefaultDisplay ();Log. I ("MainActivity", "height:" + display. getHeight ());Log. I ("MainActivity", "width:" + display. getWidth ());// The second method returns pixels.DisplayMetrics displayMetrics = getResources (). getDisplayMetrics ();Log. I ("MainActivity", "height" + displayMetrics. heightPixels );Log. I ("MainActivity", "width" + displayMetrics. widthPixels ); // The first method returns pixels.Display di

Android ignores screen unlock protection Interface1 PrincipleAndroid has three screen unlocking protections: Pattern unlocking, PIN password unlocking, and password unlocking. The interface is as follows: Chart 1: Unlock page; Chart 2: PIN password unlock page; Chart 3: Unlock pageWe can use java. lang. object. android. app. keyguardLock, a subclass of KeyguardManger, can control the Disable screen lock int

In Android, follow these steps: A. Obtain the mobile phone vibration service through the system service. Vibrator vibrator = (Vibrator) getSystemService (VIBRATOR_SERVICE ); B. Check whether the vibrator exists after obtaining the vibration service: Vibrator. hasVibrator (); Checks whether the current hardware has a vibrator. If yes, true is returned. If no, false is returned. C. Make appropriate calls

Optimization of mobile phone storage performance and android performance in the android systemI. How is the storage performance enhanced?Ii. Enhanced storage performance: emmc standard evolution optimizes storage performanceIii. Enhanced storage performance: wrapfs replaces fuse to optimize built-in sdcard Performance Iv. Enhanced storage performance: f2fs repla

// Self-introduction of the corresponding package,1 Public classMainactivityextendsActivity {2 3@SuppressLint ("Inlinedapi") 4 @Override5 protected voidonCreate (Bundle savedinstancestate) {6 Super. OnCreate (savedinstancestate); 7 GetWindow (). Requestfeature (Window.feature_no_title); 8 if(VERSION. Sdk_int >=Version_codes. LOLLIPOP) {9window window =GetWindow (); Ten Window.clearflags (WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS One|WindowManager.LayoutParams.

Note: You must use this feature to support NFC capabilities for both devices. 1. Under the Standby page, click "Application". 2. Click "Set". 3. Slide up the screen and choose NFC and pay. 4. Click "NFC". 5. Click on the slider on the right side of "off" to show that the "on" representative is open. (The mobile phone also needs to turn on this feature) 6. Click on "