This example shows how to add a simple single-page navigation, and then shows how to display all the phone numbers dialed on page 1th in page 2nd.
(1) Understand the basic architecture of the Android app through this example.
(2) This example to understand the implementation of Android multi-screen navigation basic technology.
This example is just to give us a
and transaction cancellation records.After the application is published, you can track all of your application's performance in the trading market from the developer Console (Developer console).=====================================================================================The console lists all of your applications and:* Tell you how many times each app has been downloaded.* Tell you how many devices are currently installed on your
. Java file, calculate the oom_adj of the process, for example:[Java] View plaincopyprint?
If (APP = top_app ){
// The Last app on the list is the foreground app.
Adj = foreground_app_adj;
App. adjtype = "Top-activity ";
}
if (
. installation and positioning of INSTALL_LOCATION_PROVIDER provides android. permission. INSTALL_PACKAGES allows the app to install android. permission. INTERNAL_SYSTEM_WINDOW allows the program to open an internal window, and does not allow third-party applications to open this permission for android. permission. INT
mode:shellshellsettrue5. Simulate waking your application using the following command:shellsetfalseshellget-inactive 6, observe your app, make sure the app can be restored from standby mode gracefully, should check the app notification and backstage can continue to work as expected.Seven, the client use method:
The
icon on the right
I. Implementation Principle
1. You must first define an ExpandableListView in the layout file.
2. Create the layout file group corresponding to the first-level entry.
3. Create the layout file child corresponding to the second-level entry
4. The Activity that loads the ExpandableListView component must inherit from ExpandableListActivity.
Ii. layout and code
1. First, activity_main.xml in the main layout
2. Define the layout level-1 Li
, which describes receiver.In the Registerreceiver method of the context, it uses the PMS to obtain information about the package, which is the loadedapk object.This is the Loadedapk object, its Getreceiverdispatcher method, which encapsulates receiver into a binder object that implements the Iintentreceiver interface.We're just going to pass this binder object and filter to AMs.Just passing receiver to AMs is not enough, and when sending a broadcast, AMS does not know who to send it to? So the
, reader, friend, and life, among them, the common package is shared by these three applications. config and oauth are optional. View stores some of the most common custom views, such as dialog boxes and custom lists, if you think some views may not be generic, you 'd better place them in the common package of the application class. if you have read Android Learning Series (6) -- for
Run your app这篇课程会教你:1、如何在设备上运行你的app。2、如何在模拟器上运行你的app。当然,在学习之前,你还需要知道:1、如何使用设备。2、如何使用模拟器。3、管理你的项目。In the last lesson we created an Android project. It can be run directly. When we create it, it will default to help us write a Hello world! The interface. You can see it running.At the moment of running the item, let's tak
buildDozen multi-Channel packages (Product Flavor)Now to explain the question in the previous section, the meaning of thetwo apk in the APK directoryWhy is there a two apk?The default Android Gralde plugin defines the two types of apk type debug, release, and these two types of detailed comparison see appendix.This is the Android Gralde plugin buildTypes{} method generated, the default configuration of the
First, prefaceSome time ago, the company has an app project needs to support different platforms, so the use of Ionic2 + Cordova + ANGULAR2, in the process of building the environment encountered a lot of problems, just recently have time to sort out.Second, the development environment constructionRefer to this site steps to build:Https://github.com/DonaldTdz/Ionic2QuickStartNote: Nodejs to install 6.0 +lts the latest version, do not install 8. Latest
application's namespace to "Com.sample.HelloWorld" in the Packager.json package configuration file, when I asserted that the namespace should be the package name for the Android app, where we can "PM List Packages "This is specifically a command to list all the installation packages to verify:From the fact that we can
Objective
This is the main implementation of an Android application, static broadcast, dynamic broadcast two ways to change the content of the widget, that is, in the blog on the basis of the experiment to modify, so the focus of this experiment is the realization of appwidget small parts ~
First, let's simply say what the widget is.
The application window widget (widget) is a tiny application view that can be embedded in other applications (such a
, there may be 10 downloads in one app store, 25 downloads in two app stores, and 50 downloads in three app stores, the premise is that the downloads of each app store are consistent.
The principle is very simple. A user who sees
Get started with Android APP development
This article describes how to get started with Android APP development, including SDK download, Development Environment setup, code writing, and APP packaging. It is a very simple Android
Let's start with a little analysis of the test environment: we know that CPU and memory consumption is a real-time change, and no specific Android app on the market can monitor CPU and memory consumption in real time and use log logs to save. Considering that Android's underlying framework is a Linux -based platform, we can monitor the Android platform's resource
://code.google.com/p/android-apktool/downloads/list ;files that need to be downloaded :-- Apktool jar package : apktool1.5.2.tar.bz2-- apktool boot tool (Linux) : apktool-install-linux-r05-ibot.tar.bz2-- apktool boot tool (MAC) : apktool-install-macosx-r05-ibot.tar.bz2-- apktool boot tool (wondows) : apktool-install-windows-r05-ibot.tar.bz22. Anti-compilationto place the downloaded file in a file :decompile
?? Android uses Intent to pass the object, list, List
, Object>
Method 1:
If you simply pass the List
Or List
Then you can directly use
Java code
Intent. putStringArrayListExtra (name, value)
Intent. putIntegerArrayListExtra (name, value)
Method
Intent object for receiving app widget Broadcast
Appwidgetprovider is just a convenient class. If you want to directly receive app widget broadcasts, You can implement your own broadcastreceiver class or override the onreceive (context, intent) callback method. You need to care about the following types of intent objects:
Action_appwidget_update
Action_appwidget_deleted
Action_appwidget_enabled
Action_appwi
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