block calls on android

In the version of Android studio2.3.3, the JNI function calls the C + + object, the object calls the related member function,LLDB Debug, Variable Tracking window, this pointer and related variables display invalid reason, but these parameters are actually valid, just debug LLDB Debug environment error.The reason is that the emulator chooses the x86 architecture a

1. To use the phone dialing feature in Android, you must first include permission to make calls in the Androidmanifest.xml feature list:2, the code to make the call:A, call the Android system Dial-up interface, but do not initiate the call, the user presses the dial key to make the call1 @Override2 Public voidonCreate (Bundle savedinstancestate) {3 Sup

() { -Publicvoidrun () { theMwebview.loadurl ("Javascript:dosomework ()"); - } - }); - }, Public void printmsg (String msg) { System.out.println ("----------msg:" + msg); } "Js2java" 　　　　 mwebview.loadurl ("file:///android_asset/demo.html"22 }Attention:Using Addjavascriptinterface under Android 4.2 is a security breach, this article can be used http://www.pedant.cn/2014/

Summary: Reprint please declare: the original translation from: Http://www.cnblogs.com/xiezie/p/5929996.html A, Java calls the development of local functions steps: 1. The class that writes the local method (which can be said to describe the local method):2. Compile this class to generate a. class fileThere are a number of ways to do this under Android studio: Click Make Project Clea

Skype mobile edition is an instant voice communication tool. Other functions required by IM, such as video chat, multi-user voice conference, multi-user chat, file transfer, text chat, and so on. The Skype mobile phone version can be used for free high-definition voice conversations with other users, or domestic and international calls, regardless of the fixed phone number, mobile phone number, or PHS can be called directly, in addition, it can implem

Many people Android above using AES appear javax.crypto.BadPaddingException:pad block corrupted under the code without problems, their own control, do not explain!public static Class cryptogram{public static string Encrypt (string seed, String cleartext) throws Exception {byte[] Rawkey = Getrawkey (Seed.getbytes ());Byte[] result = Encrypt (Rawkey, cleartext.getbytes ());return Tohex (Result);}public static

Linux Kernel (Android) encryption algorithm Summary (iii)-Application call Kernel cryptographic algorithm interfaceThe method of how to invoke interfaces in the kernel is described.This section is mainly about how to invoke the AES encryption algorithm of the Android C + + application calling OpenSSL.Crypt_ssl.c#include compile files in Android source code:Androi

The android program calls shell commands and scripts, androidshell A function of android recently called shell commands to perform system-level operations, such as shutdown and startup, now let's summarize the specific usage and pitfalls (based on what I used, I won't talk about what I didn't use) (1) Runtime.getRuntime().exec("ls"); This is the simplest one.

); }/** * Shrink picture * * @param uri */public void Startphotozoom (Uri uri) {Intent Intent = new Int ENT ("Com.android.camera.action.CROP");//Call the Android system comes with a picture clipping page, Intent.setdataandtype (URI, image_unspecified); Intent.putextra ("Crop", "true");//trimming//Aspectx aspecty is a proportional intent.putextra of width ("Aspectx", 1); Intent.putextra ("Aspecty", 1); Outputx Outputy is a c

reverse telecommuting with their own set of UI set up will not be a short time, the fastest and most fast one day. The company added an hour or less than 50 dollars4. Amateurs in the fun--------------------------------------------------------------------------------------------------------------- ----------Labor gains do not like to spray: Get ""The object is as followsLogin screen background with HTML5 special effects automatically switch (shutters, curtains and other switching modes)Code gene

Telephonymanager is a service class that manages mobile phone call status and telephone network information, which provides a large number of getxxx () methods to obtain information about the telephone network. the details of Telephonymanager can be referenced: Android development to get SIM card information for mobile phoneProgram Run Result: Log_phone file:Application Examples: Package Com.jph.monitorphone;import Java.io.filenotfoundexce

(ActivityView);}}}@Overrideprotected void OnCreate (Bundle savedinstancestate) {Intentfilter IFT = new Intentfilter ();Ift.addaction (Intent.action_close_system_dialogs);Homekeyeventreceiver = new Homekeyeventbroadcastreceiver ();Registerreceiver (Homekeyeventreceiver, IFT);Super.oncreate (savedinstancestate);}@Overrideprotected void OnStart () {Super.onstart ();Startproximitysensorforactivity (this);}public void Addhomeclicklistener (Homeclicklistener homelistener) {Homeclieklistener = Homelis

The Code calls the Android Application to uninstallIn Android applications, a few are offered to uninstall their own applications, that is, some of the most uninstall applications. I personally think that, from the product perspective, it is not necessary to provide an uninstallation.The following describes how to uninstall the SDK from a technical perspective.Th

Android multimedia calls the camera and selects an image from the local albumOverview: The function of this routine is to take photos, automatically compress images, and select images from the local album.Permission to be loaded: Demo: Public class MainActivity extends Activity implements View. onClickListener {private Button mButtonTakePhoto; private Button mButtonGetPhoto; private ImageView mImageViewP

Android multimedia calls the camera and selects an image from the local album,Overview: The function of this routine is to take photos, automatically compress images, and select images from the local album.Permission to be loaded: Demo: Public class MainActivity extends Activity implements View. onClickListener {private Button mButtonTakePhoto; private Button mButtonGetPhoto; private ImageView mImageViewPho

create a new picture, save to the specified location----------------------------------------------------------------------------Finally, one more question I have recently encountered, the problem is described as follows:After calling the camera, press the home button to exit the program, open the camera on the phone to take a few photos, exit the camera to re-enter the program, click the Photo Confirmation button, jump to the cutting interface when the interface is black, no photo display.After

Package Com.example.sendsms;import Java.util.arraylist;import Android. R.array;import android.net.uri;import android.os.bundle;import Android.app.activity;import android.content.Intent; Import Android.telephony.smsmanager;import Android.view.menu;import Android.view.view;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.edittext;public Class Mainactivity extends Activity {@Overrideprotected void onCreate (Bund

Since basically all Android phones support images with a ratio of 4:3 and 16:9, sometimes the custom Surfaceview size does not meet these two proportions and will deform.Another situation is that the default previewsize and the ratio of our view will also cause deformation; the solution is from params.getsupportedpreviewsizes () Choose the appropriate proportions and then params.setpreviewsize (), at which point the size of the preview is set, and the

The salesman needs to open a wap station on the mobile phone in the form of an App. Do not nest WebView, but only open it in a browser. check some information and the following goods will be available. MainActivity String TAG = "ActivityDemo" = "android. intent. action. VIEW "= Uri. parse (http://www.cnblogs.com = "android. intent. action. VIEW "= Uri. parse ("http://www.yinzimeijia.com" "start onResume ~~

onServiceDisconnected (ComponentName className ){ServiceBinder = null; MBound = false;}}; B) defined in onStart: Intent intent = new Intent (this, CmdSocketService. class) BindService (intent, mConn, Context. BIND_AUTO_CREATE ); // ================================================ ================================== Service class definition: Public class extends socketservice extends Service { // 1. Public class MyBinder extends Binder {Public synchronized socketservice getService () { Log. v