how to use android phone for dummies

to Environment.getexternalstoragedirectory () returns the path to the built-in SD. This can be explained that there is no external SD card in the case, on the ZTE phone, call Print environment.getexternalstoragestate (), but return to "removed", on the Sony, MOTO G on the return: "Mounted" The reason is already known, but how to get to the specific path of the built-in EMMC storage when there is no external SD card? For example, my ZTE

First, demand analysisRecently the computer needs to connect WiFi, but found the WiFi password to forget. And the phone has saved the WiFi password, but in the phone's settings screen can not see.Although there are already some apps that can see the WiFi password, the main worry is that the passwords will be uploaded to the background by those apps. or write yourself a more assured. and using the app to see just a click, it is more convenient than dir

What about the lack of memory for Android phones? Method One: Install the RE manager, open to find the/data/local/directory, which has rights and TMP two folders, if there is no Rights folder, open the Tmp folder, here are all the software failed to install before, and then empty it. Method Two: Open the "RE Manager"--find "data"-"Dalvik-cache" in this folder are all the system cache files and uninstall custom program left the useless log f

In my daily text message program, you can click the select contact button to display the contact selection page. After you click Select contact, the mobile phone number of the contact is added to a text box. For the introduction and interface of this program, see my first Android program.You can directly use the built-in contacts of

On the server side of php, the client sends a string of numbers to the server side using the android mobile phone. after the server side verifies, the return value is returned to the client, how does the server implement this function in the background? Reply to discussion (solution) You can use php to write an interface. Verify and then output the returned con

The previous article introduced three methods of phone pairing connection. This article describes how to search for Bluetooth devices and actively pair and connect to them using a complete code example. Package jason.com; import java. io. IOException; import java. lang. reflect. method; import java. util. arrayList; import java. util. list; import java. util. UUID; import android. app. activity; import

return the data to the pastIntent Intent =NewIntent (); Intent.putextra ("Phone", phone); Setresult (0, intent); Finish (); } } }); }Then add the following code in the Onactivityresult@Overrideprotected voidOnactivityresult (intRequestcode,intResultCode, Intent data) { if(data! = NULL ) { //1, return to the current interface, the method of accepting th

Computer modificationNote: USB is set to debug mode1, the phone must first root, Xiaomi can be Android development version of the system can be2, Android ADB tool (Android Debug Bridge)3. Execute the following command in turn1, the root access of ADB root will automatically start Server2, adb remount settings/system

If you are still using the original data line when uploading files to your mobile phone, or using Bluetooth for transmission, the data line transmission is not very convenient because it is affected by the line and interface. Data cable connection is used for a long time, which can easily damage the data port of the mobile phone. Bluetooth transmission is relatively troublesome. A computer must have a bluet

both without external SD card case, on ZTE phone, callPrint environment.getexternalstoragestate (), but return "Removed", on Sony, MOTO G, return:"Mounted"The reason is already known, but how to get to the specific path of this built-in EMMC storage when there is no external SD card?For example, my ZTE phone, since the use of environment.getexternalstoragedirect

Figure 2-1: Figure 2-1 2. Select "All settings" as shown in Figure 2-2: Figure 2-2 3. Locate and click "Backup and Reset" as shown in Figure 2-3: Figure 2-3 4. Click "Restore factory Settings" as shown in Figure 2-4: Figure 2-4 5. If you have important information to check "Reset before backup Data", click "Reset Mobile Phone", as shown in Figure 2-5.

This example analyzes the use of Phone Dialer developed by Android. Share to everyone for your reference, specific as follows: 1. Create a new Android project called Javacallphone, and build a Callphoneactivity.java class under Cn.csdn.hr.activity package 2. Open the layout under the Res main.xml layout, set the la

, restart, run multiplatform platform for pure Web application, after the background modification, the end user refreshes the page to complete the deployment, do not need any business interruption, to ensure that the business system 7x24 hours available. Safety Based on the large risk of ActiveX security The use of industry-standard EMACSCRIPT/W3C and other international norms, all procedures are operating in the sandbox,

Android Telephony-real-time mobile phone signal change source code analysis process record, androidtelephony Source code: 4.4 Skip UI implementations such as InCallActivity. First look at the service and the underlying layer. 1. the following file list is found under frameworks/opt: ./telephony/src/java/com/android/internal/telephony/cdma/CdmaServiceStateTracker

Hello everyone, today brings us a copy of the 360 Mobile phone guard Suspension window effect of the tutorial, before beginning please allow me to say a few irrelevant nonsense. Unconsciously, I found myself in touch with Android for nearly three years, the period of all kinds of growth without the help of the master, there are always many experts like to write their own experience on the Internet for ever

push the message, the Cloud Service sends the message to MPNs, and then MPNs delivers the message to the push client service, which eventually passes the message to the application (⑤, ⑥, and ③) by the push client service. Third, the Android push program Android's push program is more and more messy. For example, there are Google's official C2DM (Android Cloud to Device messaging), Third-party push ser

This article mainly introduces Android to get the phone screen size implementation code, Android development often need to get the screen width, this article directly packaged into a tool class, the need for friends can refer to the Android in the custom control, often need to get the width of the screen, each time to

Android Hidden IME (IME) input box There are two ways to not allow the program to rise by default IME input box:1. Let EditText lose focus, use EditText Clearfocus method2. Force hides the Android Input Method window, in the IME class we instantiate the input method to control the object, through Hidesoftinputfromwindow to hide the IME input box. Code

display area, A setting is left (Android: layout_alignparentleft = "true"), right (Android: layout_alignparentright = "true"), and center (Android: layout_centerinparent = "true "). 4. Create the detailed. xml layout file. This is the detailed page layout that we will jump. Source code: Pay attention to the include label above. This article has already explai

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 by the UMTS terrestrial Wireless access network (UTRAN,UMTS terrestrial Radio access netw