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; Import android.app.Activity; Import Android.os.Bundle; Import Android.util.Log; Import Android.view.Menu; Import Android.view.View; Import Android.view.View.OnClickListener; Import Android.widget.CheckBox; Import Com.urbanairship.push.PushManager; Import com.urbanairship.push.PushPreferences; public class Mainactivity extends activity {private static final String LogTag = MainActivity.class.getName (); Private CheckBox Enablepush; @Overrid

XMPP is a protocol based on the Extensible Markup Language (XML). It is used for instant messaging (IM) and online detection. This protocol may eventually allow Internet users to send instant messages to anyone else on the Internet. XMPP is used to implement the push function of Android. XMPP is a real-time communication protocol. XMPP is a protocol used for instant communication. The process of using XMPP is similar to that of using QQ. The process is divided into three steps: 1. Connect to the

The example compares the simple record the thought1. Define entity and method declarations in interfacesLogin information[OperationContract][WebInvoke (UriTemplate = "Loginf/{name}/{pwd}", Method = "POST", Responseformat = Webmessageformat.json)]Loginf Getloginf (string name, string pwd);2//Data Exchange entity class[DataContract]public class Loginf{[DataMember]public string UserId {get; set;}[DataMember]public bool LogTag {get; set;}[DataMember]publi

())); startActivityForResult(intent, REQUEST_CODE);}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == REQUEST_CODE) { if (Settings.canDrawOverlays(this)) { Log.i(LOGTAG, "onActivityResult granted"); } }}The above code needs to be aware that To Settings.ACTION_MANAGE_OVERLAY_PERMISSION start an implicit intent with an action

Android.webkit.WebView; Import android.webkit.WebViewClient; Import Android.widget.Toast; Public class Mainactivity extends activity { private static final String LogTag = "mainactivity"; @SuppressLint ("Javascriptinterface") @Override protected void onCreate (Bundle Savedinstancestate) { super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); Final WebView Mywebview = (webview) Findviewbyid (R.id.mywebview);

In the client, we find the program entry in the Androidmanifest.xml file, which is the following demoappactivity class ,The main code in this class is as followsServiceManager ServiceManager = Newservicemanager (this);Servicemanager.setnotificationicon (r.drawable.notification);Servicemanager.startservice ();Along the way, there is a call to the Xmppmanager class in the Notificationservice (Xmppmanager.connect ();), and the Xmppmanager class is the class that the client is more important, and th

);}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == REQUEST_CODE) { if (Settings.canDrawOverlays(this)) { Log.i(LOGTAG, "onActivityResult granted"); } }}The above code needs to be aware that To Settings.ACTION_MANAGE_OVERLAY_PERMISSION start an implicit intent with an action Use "package:"+ getPackageName() the package name in

mainlooper = Looper.getmainlooper (); LOG.I (LogTag, "Isinmainthread mylooper=" + mylooper + "; mainlooper=" + mainlooper); return mylooper = = Mainlooper; } OK, then we run a test in the main thread and invoke the above method. Like we call this. Copy Code code as follows: LOG.I (LogTag, "Testinmainthread inmainthread=" + isinmainthread ()); OK, let's take a look

clazz, Jintarray Jarray) {Jsize (*getarraylength) (jnienv*, Jarray);Jsize length = (*env)->getarraylength (Env,jarray);LOGD ("length =%d", length);Jboolean iscopy;jint* (*getintarrayelements) (jnienv*, Jintarray, jboolean*);int* Arraypointer = (*env)->getintarrayelements (env,jarray,null);int i;for (i = 0;i* (arraypointer+i) + = 10;}return jarray;}output content to Logcat in C codeAndroid.mk文件增加以下内容LOCAL_LDLIBS += -llogC代码中增加以下内容#include Define C macros define aliases #define

FFmpeg is a very powerful set of video audio processing libraries, however, the powerful features are generally unavoidable complex implementations, or more realistically, the "trouble" of the deployment and use of the processAbout "ffmpeg How to deploy" this is put in another article, the following into the topic:Both the Encoding encoder module and the decoding decoder module have init initialization method and resource free methodThe Init initialization method is mainly for the initialization

. If you are not sure how Java code implements the improvements, you can click on the Java code to write an Android app to achieve security PackageCom.example.obtaintouchicon;ImportJava.io.BufferedReader;Importjava.io.FileNotFoundException;Importjava.io.IOException;ImportJava.io.InputStream;ImportJava.io.InputStreamReader;Importandroid.app.Activity;ImportAndroid.os.Bundle;ImportAndroid.util.Log;ImportAndroid.webkit.JavascriptInterface;Importandroid.webkit.WebChromeClient;ImportAndroid.webkit.Web

();//start thread, Nativedaemonconnector implement Runnable interface, implement in Run//ADD ourself to the Watchdog monitors if enable D. if (watchdog_enable) {watchdog.getinstance (). Addmonitor (this); } }Two. Mountservice Receive socket:Above see constructs the nativedaemonconnector used to receive the socket message from the lower layer, first look at the structure: Nativedaemonconnector (inativedaemonconnectorcallbacks Callbacks, string socket, int responsequeuesiz

that calls the Foo::bar () function: 1 2 3 void Foo::bar () {4 // callstack::callstack (const char* LogTag, int32_t ignoredepth, int32_t maxDepth) 5 New CallStack ("Trace"1); 6 Delete t; 7 }CA little bit more trouble, need to call directly corkscrew/backtrace . In fact, C + + utils/Callstack is also used corkscrew/backtrace , just to make the package easier to use. We can refer to the CallStack.cpp code inside. The following example is

);} setrequestedorientation (Activityinfo.screen_orientation_landscape); Videowebview.setvisibility (View.gone); //If a view already exists, then immediately terminate and create a new if(Xcustomview! =NULL) {Callback.oncustomviewhidden (); return; } videoview.addview (view); Xcustomview=view; Xcustomviewcallback=callback; Videoview.setvisibility (view.visible); } @Override//the video playback exits full screen will be called Public voidOnhidecustomview () {if(Xcustomview = =NULL)//not

Before using Onsharedpreferencechangelistener, there is a small problem, that is, sometimes onsharedpreferencechangelistener is not triggered. Recently spent a little time studying, small do tidy up. This article will explain why the listener is not triggered, how to fix it, and some of the technical details implied therein. Problem reappearance Onsharedpreferencechangelistener is a listener for changes in sharedpreference files in Android. Usually we want to listen, and we will implement the

How to implement JavaScript and Java interactionIt is very convenient to implement Java and JS interaction. This usually takes only a few steps. WebView Open JavaScript Script execution WebView sets the interface for JavaScript calls. The client and the Web side write code that calls each other. #直接看示例代码:The Java code is as follows:Package Com.ccb.javascript;import Java.net.urisyntaxexception;import Android.annotation.suppresslint;import Android.annotation.targetapi;import

predeclaration, so class loggerptrwrapper; Class judger_api log4cxxloggerimpl: Public ilogger {public: consume (const ojstring configfilename, const ojstring logtag); Virtual ~ Log4cxxloggerimpl (); Virtual void logfatal (const ojstring MSG) const; virtual void logerror (const ojstring MSG) const; virtual void logwarn (const ojstring MSG) const; virtual void loginfo (const ojstring MSG) const; virtual void logdebug (const ojstring MSG) const;

Android project is located --> ndk-build (cross-compilation command), refresh the project, and there will be one in libs/armeabi. so file, the file name is lib + hello (the Library name defined in mk), and an obj folder will be added in the project, mainly storing intermediate files Step 5:Introduce function libraries in Java code // Use a static code block to introduce the function library static {System. loadLibrary ("hello");} to Java code ");} Step 6: Public void method () {// call String s

--> ndk-build (cross-compilation command), refresh the project, and there will be one in libs/armeabi. so file, the file name is lib + hello (the Library name defined in mk), and an obj folder will be added in the project, mainly storing intermediate files Step 5:Introduce function libraries in Java code // Use a static code block to introduce the function library static {System. loadLibrary ("hello");} to Java code ");} Step 6: Public void method () {// call String str = helloFromC (); Toast.