1 we find "Setup" in the mobile phone generally in the setup will have a system in the "about the phone" then we click on it to enter, on the phone we will see a "version number" Now we need to continuously click on the version number, and then you will see the system is prompted "you are now in the developer mode."
2 All right, wait until the opening is compl
Android development package the project into an apk, Android to the mobile phone, or submit it to the app Store, androidapk#1. It is easy to export an app using Eclipse. Let's take a look at my steps. Images and truth
Select a project
Create a new one with a random location. The following is the password.
Here are some names, regions, organizations
1, Android APK program parsing Package If the error we may be the installation package itself has problems, we can remove the installation package to download a can solve this problem.
2, the APK program system version requirements, so the installation package requirements in the android4.4 system, but in your Android 2.2 system will certainly be out with the parsing package error.
3, there is also a poss
Mobile terminals use rem to adapt to Android ios Mobile Phone principles, mobile responsive development, and Android ios
People may already be familiar with the rem unit. rem is a method that shows the width with the html font size. How can we develop the mobile terminal response?
The default font size of the browser is 16 PX and 1rem is 16 PX.
If we want to make
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
What to do without a USB camera.
It's okay to have an Android phone, we can turn it into a webcam.
1. Install a mobile phone called [IP Camera] app, get IP address, account password
2. Install Python and OpenCV
3. Execute the Python script below, and notice that you want to change the IP address to the one displayed on your p
Java. io. inputstream; import java.net. httpurlconnection; import java.net. URL; import Org. xmlpull. v1.xmlpullparser; import android. util. XML; import CN. roco. utils. streamtools; public class addressservice {/*** is used to obtain the mobile phone number and call WebService * @ Param mobile phone number * @ return * @ throws exception */public static string
Android solves the problem that the mobile phone cannot find the hotspot after the hotspot is opened through custom settings ., Android hotspot
During the development process, the mobile phone cannot find the hotspot after the hotspot is opened through custom settings.
Later, by viewing the hostapd. conf file in the/
Web calls for Android, Apple mobile phone cameras, local images and files, and web android
Because a customer needs to make a billing WAP, which calls the mobile phone photo function, record it here for the friends who need it. Below is a complete HTML page content, put it on the server and browse it. Only Chrome and S
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
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
The following is an example of a number, a telephone to tell EditText how to set the input type, other types can refer to the InputType class.
1) can only enter the number
The code is as follows
Copy Code
EditText et = (edittext) Findviewbyid (r.id.ettest);Et.setinputtype (Inputtype.type_class_number);
2) can only enter the phone number
The code is as follows
Copy Code
EditText et =
The Androidmanifest.xml file on the Android project has the following configuration for activity: The scheme,host,port,pathof the properties of data in the filter configured in Androidmanifest.xml is identical to the HTML. The HTML page code looks like this: So there are two programs that can handle this jump link: One is the browser of the system, and the other is the activity that configures the intent-filter. If this app is not installed, then th
The RE file manager must be installed we need to install a re file manager on the Android phone before we can view the WiFi password.
1. Mobile phone installation re File manager
2. Then we open the phone in the "RE File Manager" below
3. Find/data/misc/wifi in the RE manager as shown in the following figure
4. The
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