android pixel 2

Data storage in Android (2): android Storage In the previous article, we introduced how to use SharedPreferences. Today, we will continue to introduce another way to store data: using internal storage and external storage. Each Android device has two data storage areas: External Storage and external storage. Wha

called "listeners" on the Leekmanager that have a reference to all of Those activities.But, where do you come from?Well, check this out: // in Leekfragment.class: @Override public void OnCreate (Bundle savedinstancestate) { super .oncreate (savedinstancestate); // Add this fragment as a leek listener so // It can update its view accordingly Leekmanager.get (). AddListener (this Every time LeekFragment we are created, we add it as a to the LeekListener LeekManager Singleton. B

Implementation of Countdown e-clock for Android (Part 2) and later for android This article continues with the unfinished part, which will achieve dynamic results In the program, first specify an End Time: 00:00:00 Calculate the time difference between the current time and the end time. private long getCurrentShowTimeSeconds() {Date curTime = new Date(); lon

Android-only 2 rounded imageviews and android-ImageView This example is an example of converting two right angles of an image into a rounded corner: 1. Customize the width and height of the three attributes and the rounded corner value: 2. Use it in the referenced Layout 3. Set two layers in Java code. Here th

READ_CONTACTS code for AndroidManifest. xml: After the above files are compiled, the application can run correctly on the Android2.1 simulator. What if the app runs on android1.6? 1.6 does not have the ContactsContract class system, so an error will be reported. Note that the ContactContract class is added in API Level 5, which is not supported in earlier Android versions. On Android 1.6 (API Level 4),

Android learning route (2) create an Android Project An Android project contains all the files including the Android app code. The Android SDK provides default project directories and files to create a project. This course will sh

Android from ignorance to knowledge-No. 2 and androidno. 2 Despite encountering bottlenecks in the past few days, they are getting better and better. Because they have never touched android before, as a newbie, they will not be overly demanding. Compared with the distributed resource search last year, mobile developmen

PrefaceIn [Android Series-] 1. Android development Environment Building and Hello World This article describes how to quickly build an Android development environment and successfully build an Android application without any code changes.Next, you have to see1. What directories and files are available for apps created

intersect, // The final region is the region XOR (3) in which region1 and region2 are combined ), // The final region is reverse_difference (4) outside the intersection of region1 and region2, // The final region is the region Replace (5) of region2 and region1 ); // The final region is region2} Apidemo provides an example of the combination at the end. Android also provides a regioniterator to iterate all matrices in region. You can use this class

Learn about the basics of Android from 0 (2)-Explanation of the AndroidMainfest. xml fileAndroidMainfest. xml file details 1. About AndroidManifest. xml AndroidManifest. xml is a required file in every android program. It is located in the root directory of the entire project, describing components exposed in the package (activities, services, and so on), their r

Source: http://www.imooc.com/code/1177Q: Is the identifier God horse?A: Identifiers are symbols that are used to name variables, classes, methods, and so on in a Java program.There are several rules to follow when using identifiers:1. Identifiers can consist of letters, numbers, underscores (_), dollar symbols ($) , but cannot contain other special characters, such as @,%, space, etc. , and cannot begin with a number . For example: 123name is not legal drop2. Identifiers cannot be Java keywords

, notification); Nm.cancel (id_led); How to get the APK file installation time. Many Android developers want to design a APK management program to get the installation date of apk files. Many netizens don't quite understand. The method used in the early Android123 is to return an ApplicationInfo array through the Getinstalledapplications method of the Packagemanager class. SourceDir in the ApplicationInfo class can obtain the APK file path, which

Android-slide back through SlidingMenu 6.2 latest version of gesture (2), android Sina Weibo Reprinted please indicate the source:Http://blog.csdn.net/hanhailong726188/article/details/46453627This article is from: [Hailong's blog] I. Overview In the previous blog post, Android-uses SlidingPaneLayout high imitation

Interpreting Android ContentProvider (2) creating your own Provider and android creating provider This article is translated from the official android documentation and tested by yourself. Content provider manages data access. We can implement one or more custom providers in our own applications (by inheriting the abs

The above describes the Android client and server interaction, the implementation of the registration function, Android client Registration/login details (i) This article will continue to introduce the app and server interactive implementation of login and automatic login function, said the request server for registration is mainly through the post request to carry the parameter implementation, the main fu

The overall call logic is:1. Compile the FFMPEG Library2. Use JNI to write C code, which must contain the corresponding FFMPEG header file3. Write the corresponding Android. mk file, which specifies the C code to be compiled and the dynamic library to be linked.4. Execute ndk-build to generate the corresponding JNI Library5. Create the andorid Java program. The corresponding FFMPEG library of loadlibrary and the jni library just generated in the code6

I am on the blog to publish some of my Android learning experience, I hope that everyone can help.This article tells us about how Android obfuscation can be customized Proguard parameters to implementEnvironment Configuration Reference Android learning experience (1)---Android environment under Mac buildSignature Refer

Android learning notes-Menu (2), android learning notes Knowledge point: This time, we will continue the learning of menus not finished in the previous article, Context Menu and pop-up menu ). Context Menu The Context Menu provides operations on specific items or context frameworks on the UI interface, just like the context menu in Windows. In

density of the screen, because they are generalized into a general size and density group by the android system. Density-independent pixel (dp) A virtual pixel unit. You can use them in your UI unit to indicate the dimensions and positions of the layout in a way unrelated to density. A density-independent pixel is a p

[Android] Chapter 1 location service and Mobile Phone Positioning-This Chapter provides an example of the main interface, Chapter 2 of android Category: C #, Android, VS2015; Created on: 1. Introduction Currently, location-based services have developed rapidly, involving business, medical, positioning, tracking, war