time widgets for android

the coordinate system in this transformation. In Android, the default view coordinate system is the upper-left vertex (0, 0), the x-axis, and the y-axis. This requires that the rect coordinate be transformed. Another difficulty is that this face detection must be started after the camera is turned on, and if you take a photo or stop the preview, you need to activate it again. You need to add a delay when activating, otherwise it won't work.In additio

time to calculate the relative background noise decibel value, if the user does not sound to the microphone, the calculation of the basic is 0 db. And the user actual use scene background noise size is very different, if I also divert is wrong, especially for those who make absolute decibel requirements, should find 20 micro-PA value corresponding to the amplitude (or can also take a standard decibel meter to do calibration reference). Bloggers are

[Java]View Plaincopyprint? Import Java.text.SimpleDateFormat; SimpleDateFormat formatter = new SimpleDateFormat ("yyyy mm month DD Day HH:mm:ss"); Date curdate = new Date (System.currenttimemillis ()); Get current time String str = Formatter.format (curdate); You can get the current year or month, or you can write separately:[Java]View Plaincopyprint? SimpleDateFormat Sdateformat = new SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss")

1: Its constant microseconds,milliseconds,nanoseconds,seconds are all timeunit typesNOTE 2: The meaning of convert (long duration, Timeunit unit) duration this time into the time form represented by this object (this).One of the possible microseconds,milliseconds,nanoseconds,seconds of this object.As to what kind of time duration is (a kind of microseconds,milli

The Android system provides DatePicker, Timepicker, Datepickerdialog, Timepickerdialog controls for date and time selections and settings, but they are relatively independent and inconvenient to set " YYYY-MM-DD HH:mm:ss Date Time, the following is a date-time selection control Datetimepickerdialog that is customized w

Recently done project is and voice real-time capture and send, the other side real-time receive and play related, the following record the implementation of the core code.Many Android developers should know that Android has a Mediarecorder object and a MediaPlayer object for recording and playing audio. The disadvantag

The code for updating the playback time and progress bar of the music player in Android is in the packages/audio music/mediaplaybackactivity. Java file. Source code reference: http://www.oschina.net/code/explore/android-2.2-froyo/com/android/music/MediaPlaybackActivity.java 1. In the onstart () function, start to updat

Private Camerabridgeviewbase Mcvcamera;Cache camera input data per frame private Mat mrgba,mtmp;//button component Private button mbutton;//Current processing state private static int cur_state = 0;private Size MS IZE0; Private Mat Mintermediatemat; Private Matofint mchannels[]; Private Matofint mhistsize; private int mhistsizenum = 25; Private Mat mMat0; Private float[] Mbuff; Private Matoffloat mranges; Private point mP1; Private point mP2; Private Scalar mcol

); } @Override Public Booleanonintercepttouchevent (motionevent ev) {LOG.D ("ZCW", "Viewgroupa onintercepttouchevent" +ev.getaction ()); return Super. onintercepttouchevent (EV); } @Override Public Booleanontouchevent (Motionevent event) {LOG.D ("ZCW", "Viewgroupa ontouchevent" +event.getaction ()); return Super. Ontouchevent (event); }}We buried a little bit in every listening event.We run the program to see the order in which each control's events are executed:When we touch the Sub view, we fi

/****************************************************************************** * Android virtual, physical keyboard cannot simultaneously make Use? * Description: * When the keyboard is inserted into the Android system, the virtual keyboard will not be used. * * 2017-6-29 Shenzhen Longhua gen Zengjianfeng ******************************************************* **********************/First, reference docume

Search for a love guest | love guest v1.6Android(Real-time voice intercom) Compared with Mi chat, it is more real-time, but it is very important. It feels better to be able to chat with QQ in real time than to make a phone call. In fact, I just tried it with my friend yesterday. I can use a computer to perform video chat on QQ on iPhone 5. Removing the image i

Android Development record 19-Friends circle Dynamic release Time calculationreprint Please specify: It_xiao, http://blog.csdn.net/wwj_748If you feel good, please go to the 2014 blog star vote address: Http://vote.blog.csdn.net/blogstar2014/details?username=wwj_748#contentthe previous article gives you the sharing of time knowledge points http://blog.csdn.net/wwj

In the previous article, we implemented time display, but it was static and could not be changed dynamically. How can we make the static time dynamically change in seconds? In the previous article, we obtained the time by using the Calendar () Class getTime () method, which only returns the time at which a program star

In the Android JB version, the System/usr/share/zoneinfo directory Zoneinfo related 3 files are data files that are used to store time zone information for each country and region city. Since the time zone information in each country will change, for example, June 13, 2014, Russia announced that the national time zone

Android high-imitation real-time chat Based on Baidu cloud push I have been imitating the interface. Today I am lucky enough to use Baidu cloud to push the imitation chat ~~~ First of all, I would like to express my special thanks to weidi1989 for sharing Android, which is based on Baidu cloud push IM. You can download it directly, saving a lot of things. In thi

.activity.xml 2.2.dateactivity.class public class Dateactivity extends Actionbaractivity { private Button btn; Private TextView TV; @Override protected void onCreate (Bundle savedinstancestate) { super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_date); Btn= (Button) This.findviewbyid (r.id.btndate); tv= (TextView) This.findviewbyid (r.id.tv); Btn.setonclicklistener (New View.onclicklistener () { @Override public void OnClick (View v) { new

In Android development, you often use the time dialog box. The date is usually selected in a edittext. Now let's learn how to use the Time dialog box.1. First, you set up two controls in the corresponding XML file, one TextView, and one edittext. Write the action on the EditText in the activity.2. Declare the variable (month date) and Txttime (EditText control, w

)Sets the current minute (0-59).public void SetEnabled (Boolean enabled)Sets the available view state. The interpretation of the available view state is changed in the subclass.ParametersEnabled if available is true, otherwise false.public void Setis24hourview (Boolean is24hourview)The setting is 24 hours or morning/afternoon.ParametersIs24hourview true indicates a 24-hour system. False indicates the morning/afternoon system.public void Setontimechangedlistener (Timepicker.ontimechangedlistener

Demonstrate a case with the following requirements:Create a thread in the service component that is used to produce numeric values that automatically add 1 every 1 seconds and then display the updated values in real time on the interface.The steps are as follows:1, a new Android project, named as demo.2, create a new service class, for real-time production of num

Recently, there is a need to compare the time of a single activity load of two versions before and afterIn the Android log we can see similar Info/activitymanager (2486): Displayed activity com.teleca/. contextmenuactivity:240 MS (total 41289 ms) log, which is the load time of the activityFirst get the log through adb logcat > xx.txt, and then analyze the log wit