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voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate); Setcontentview (r.layout.chronnmeter_layout); Mchronometer=(chronometer) Findviewbyid (r.id.chronometer); //SetFormat sets the formatted string for display. //The first "%s" in the replacement string is displayed for the current "Mm:ss" or "H:MM:SS" format. Mchronometer.setformat ("Timing:%s"); } //Start Timing Pu
); Setcontentview (r.layout.chronnmeter_layout); Mchronometer=(chronometer) Findviewbyid (r.id.chronometer); //SetFormat sets the formatted string for display. //The first "%s" in the replacement string is displayed for the current "Mm:ss" or "H:MM:SS" format. Mchronometer.setformat ("Timing:%s"); } //Start Timing Public voidOnStart (view view) {Mchronometer.start (); } //Stop Timing Pu
In the Android SDK, a timer is provided for us. This timer is called Chronometer. We can use it as a component of Android, and it also has its own unique method. The following is an example of how to use the timer and common methods.
Like other UI components, when we want to use it, the corresponding position in the layout file declares the location and attribute
This article shows you how to use the Chronometer control to implement an instance of an Android timer.
Put the final implementation diagram first:
The idea of Android timer implementation
Use the chronometer control to implement the action of the meter. Set the initial time by setting SetBase (long base) and add
In the Android SDK, we have a timer, called chronometer, that we can become a component of Android, and it has its own unique approach. Here are some examples of how this timer is used and how it is used.As with other UI components, when we want to use it, we declare the position and attributes of the timer in the corresponding position in the layout file.
Chronometr is a simple timer, you can give it a start time, and this timer, or if you don't give it a start time,
It will start with your time call. By default, it will be displayed in the form of "minute: Second" or "mm: SS" in the current timer ",
Or you can use the Set (string) timer value to any string
Important attributes
Company's previous project, see Using this Android with the countdown control chronometer, now integrates
First look at the effect:
Method Introduction:
long getbase ();//return base time, set by SetBase (long), can be a systemclock.elapsedrealtime () String GetFormat ()//returns the current string format, which is a void setbase (long base) implemented via SetFormat ();//Set time
This example for you to share the Android Chronometer timer Basic use method, for your reference, the specific content as follows
By default, the Chronometer component outputs only the MM:SS or H:MM:SS time format. For example, when the timer is 1 minutes 20 seconds, the Chronometer component displays 01:20. If you wa
CHRONOMETR is a simple timer, you can give it a start time, and take this timing, or if you don't give it a start time, It will start with your time call. By default it will display the "minutes: Seconds" or "Mm:ss" in the current timer's worthwhile form, Or you can use the set (string) timer value to an arbitrary string Important attributes Android:format defin
Timers to calculate the time spent by each athlete, and in the Android system, this chronograph function can be used with the chronometer component, the inheritance structure of this class is as follows:2Java.lang.Object?Android.view.View?Android.widget.TextView?Android.widget.Chronometera common approach
1
public Chr Onometer (Context context)
construct
Create
Android development environmentAndroid 0 Basics 4th: Installing and configuring the JDK correctly Ko fu the first trickAndroid 0 Basics 5th: Use ADT bundles to easily meet the goddessAndroid 0 Basics 6th: Configuration Optimization SDK Manager, official dating goddessAndroid 0
Android studio and genymotion android start from scratch-0, genymotion android
Presumably, the students who saw this article have installed android studio and genymotion:
And
Since then, we will learn from them. If you haven'
This example for you to share the chronometer countdown function, Android provides the implementation of the second timer API for your reference, the specific content as follows
First, custom Chronometerview continue to TextView
main principle: first set a benchmark countdown time mbaseseconds, built-in handler every 1s send an empty message, mremainseconds--, while refreshing the interface view, callback
Timers (chronometer)
Method
Describe
Public chronometer (context context) "Construction method"
Create a Chronometer Object
Public long getbase ()
Set a base time that you can do by completing
public void SetFormat (String format)
Set display format
Public long getbase ()
In Android, you can use timers to monitor time, the functionality of this class is to start the timer, stop timing, and then set the timer mode, the following list of the Timer method prototype: long getbase () ; // time to return to base, String GetFormat () set by SetBase (long), Returns the current string format, which is a void setbase (long base) implemented via SetFormat (); /Set time, va
???? The students who must have seen this article have now installed Android studio and Genymotion:andSince then we will study with them, if you do not install, you can learn from my other articles of the installation tutorial, then let's start.One:
Create a project:or import a project (Elicpse and IDEA):Let's create a new project here, for example:Here we choose Android version Select 4.4:Select a
configured the Java Development environment, installed the IDE to develop Android, downloaded the Android SDK, but Eclipse has not been associated with the Android SDK, that is, they are now independent of each other, like a gun and bullets separated. To make Android apps easier to create, run, and debug, Android's de
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