cell phone watch android

Principle Overview: The acquisition of cell phone battery power is also frequently used in application development. In Android systems, messages that change cell phone battery power are broadcast using Intent, and commonly used Intent actions include Intent. ACTION_BATTERY_C

because you are using a computer connected to the USB interface wiring or chassis front USB interface, try to test the rear of the chassis USB interface. 7. Mobile phone connection to the computer, the choice of "data storage" phone will prompt "another program is in use."Reason: This is because your phone uses the memory card's theme or ringtone, the solution

1. Terminology and concepts Android Phone UI Design resolution Basics Screen size (on-screen dimensions) Refers to the actual physical size of the phone, such as 2.8-inch, 3.2-inch, 3.5-inch, 3.7-inch Motorola Milestone mobile phone is 3.7 inches Aspect Ratio (Wide-high ratio) Refers to the actual phy

displaymetricsdemo. Java has the following code: Package com. Android. test; Import Android. App. activity;Import Android. OS. Bundle;Import Android. util. displaymetrics;Import Android. View. view;Import Android. widget. B

The 1.android coordinate system defines the x, y z axes. The direction of the x-axis is the horizontal direction of the screen from left to right, if the cell phone is not a square, the shorter side needs to be placed horizontally, the longer side needs to be placed vertically. The y-axis is directed from the bottom left corner of the screen to the top of the s

technology in Android mobile phones and other mobile applications are less likely to be mainly in the following points:1) Tariff: The mobile end of the previous years, is a large number of 3G, 4G of the Internet mode, this mode of user tariffs are relatively high, you let users through peer-to upload to others, users will scold Si people. And many of these years are unlimited traffic, and WiFi network is also more up, so in recent years, peer in the

Android development is simple, whether it's on a real-computer debug or a final release to a real machine, as follows:1. Install USB driveMobile phone to be able to connect with the computer, of course, to drive. The effect is that you plug in the phone and the computer shows that the driver is recognized. Official tutorial for driver installation: http://develop

First, in the Manifest.xml file to obtain the listening phone permissions, registered monitoring phone activityreceiverAndroid:name=". Phonereceiver "> Intent-filterandroid:priority= "+"> ActionAndroid:name= "Android.intent.action.PHONE_STATE"/> ActionAndroid:name= "Android.intent.action.NEW_OUTGOING_CALL" /> Intent-filter> receiver>1 - 2 and

Android development-Get mobile phone SIM card information, androidsim TelephonyManager is a service class that manages the call status and network information of a mobile phone. It provides a large number of getXxx () methods to obtain information about the telephone network. TelephonyManager class overview: It can be used to access telephone service information

) access_coarse_location or access_fine_location. public int getdataactivity () returns the status of the current data connection activity. public int getdatastate () returns the condition of the current data connection state. Public String Getdeviceid () Returns the device ID of the cell phone. For example, for GSM mobile phone is IMEI code, for CDMA mobile

The screen size of Android mobile phones has always been a headache for developers. Because the screen sizes used by mobile phone manufacturers are different, the presentation and layout of user UI interfaces are naturally different. Therefore, when developing Android mobile appsProgramIn addition to understanding the underlying API, the most important thing is t

how the 1.android coordinate system defines the x, y Z axis The direction of the x-axis is the horizontal direction of the screen from left to right, if the cell phone is not a square, the shorter side needs to be placed horizontally, the longer side needs to be placed vertically. The y-axis is directed from the bottom left corner of the screen to the top of t

community service broadcast function. The Community Service Broadcast Centre (cell Broadcast Center) is responsible for broadcasting all kinds of messages, such as weather, stocks, real-time traffic information, etc. to the cell phone. 4. The original base station subsystem (BSS) of the GSM network is no longer used in the UMTS/WCDMA system, and is replaced

From: http://blog.csdn.net/moruite/article/details/6028547 1. terms and concepts Terms Description Remarks Screen Size) It refers to the actual physical size of the mobile phone, such as commonly used 2.8 inch, 3.2 inch, 3.5 inch, 3.7 inch, diagonal Motorola's milestone mobile phone is 3.7 inch Aspect Ratio (width/height ratio) Refers to the actual physical size wid

0. Foreword Android's screen fit, even if an element has the same display effect on Android's different sizes and resolution phones, has been a problem that we Android developers have to face. This article refers to a lot of previous blogs, and to make a summary of this issue, and strive to streamline and understand. Reprint please indicate the source: http://blog.csdn.net/seu_calvin/article/details/52690498 1. Basic Concepts (1) screen size, that