call receiver app for android

Customize a pretty practical lock screen app, if you can win the user's approval, replace the system with the lock screen, is definitely a small day live entrance. This time is just a summary of the difficulties in the recent research on the Android platform's lock-screen app development. First, the preface The general principle of the lock screen is very simpl

server, and then the server has registered the AIDL on the system used by the client (that is, once installed and run ), then the client can remotely bind and call the service on the server. The specific steps are as follows: 1. first, it is Server 1) Create an android Application Project 2) create an AIDL file in the bag where the main Aitivity is located, this is an ADT that will automatically generate a

Method 1: Many applications have a startup interface. You are welcome to gradually hide the image. There are two methods to achieve this effect (only two methods are found at the moment)1. When two activities are used, load the first Activity when the program starts, and then call tick to trigger another Activity after N seconds.2. You can use the View. gone () method to use an Activity. Removes some elements of Acitivity. 1. Two activities:First, And

finish all the activities in the stack when the program exits. This method is described in my previous articles.The essence of the first two methods is that you need to design a stack to manage the interface or Activity, so that the program is more complicated. The method in 3rd is to first let the program go to the Home interface and then kill process: the code is as follows:Java codeIntent intent = new Intent (Intent. ACTION_MAIN );Intent. addCategory (Intent. CATEGORY_HOME );Intent. setFlags

. create (); downloaddialog. show (); downloadapk ();} private runnable mdownapkrunnable = new runnable () {@ overridepu BLIC void run () {try {URL url = new URL (apkurl); httpurlconnection conn = (httpurlconnection) URL. openconnection (); Conn. connect (); int length = Conn. getcontentlength (); inputstream is = Conn. getinputstream (); file = new file (savepath); If (! File. exists () {file. mkdir ();} string apkfile = savefilename; file apkfile = new file (apkfile); fileoutputstream Fos = ne

has to prevent the restart ....Luck is really good, just have this attribute:android:configchanges=["MCC", "MNC", "locale", "touchscreen", "keyboard", "Keyboardhidden", "Navigation", " Screenlayout "," Fontscale "," Uimode "," orientation "," screensize "," Smallestscreensize "]The official explanation is this:Lists configuration changes that the activity would handle itself. When a-configuration change occurs at runtime, the activity was shut down and restarted by default, but declaring a Conf

An Android application is typically comprised of the following 4 components: Activities (activity) Intentions (Intent) Services (Service) Content provider (contents Provider) These 4 components are the basis for Android app changes, but not every Android application must contain this 4 compone

Android app architecture design 02, androidapp Ii. Try to place the tool class and BaseActivity in the specified position during the opening process, DateFormatBitmapNotificationShared PreferenceEnvironmentDevice III:2.2 Task Management The thread is just a mechanism to ensure that the tasks we want to complete do not run in the UI thread (that is, do not block the UI). The completed tasks are the core of

In this paper, we introduce the content of Android to Judge app state by the way of illustration, as follows: To understand this piece, first of all need to understand some concepts, app,process,task 1.process is the process, the concept of Linux. 2. A generic app has a UID, runs in a process, and if the

verify the legitimacy of these data. Zip unzip the directory to cover the risk. Allow in Zip: /.. /file such a path. If you unzip to the current directory, it is possible to overwrite the files in the parent directory. Android components improper exposure, do not need to export the need exported = False. Local port open issue, Socket server. Try not to open this interface. If you want to, also just bind to 127.0.0.1, do not expose to the

starting mainactivity.The result of the ADB shell am start-w packagename/mainactivity return is the standard application startup time (note that the phone before Android 5.0 is not WaitTime this value): ? adb shell am start -W com. Media. Painter/com. Media. Painter. Paintermainactivity Starting:intent{ act=android.. Action. Maincat=[android