This article describes the Android timer Chronometer. Share it for your reference, as follows:
The Chronometer control in Android is inherited from TextView. This component can be timed at 1 second interval and displays the timing results. This is what we often call a timer tool.
public class ChronometerActivity extends Activity implements OnClickListener {
private Chronometer mChronometer;
private Button start, stop, reset, format, clear_format;
@Override
protected void onCreate(Bundle savedInstanceState) {
(savedInstanceState);
setContentView(.activity_chronometer);
// Initialize the View widget initViews();
// Set up listening events initListeners();
}
private void initListeners() {
(this);
(this);
(this);
(this);
clear_format.setOnClickListener(this);
}
private void initViews() {
mChronometer = (Chronometer) findViewById();
start = (Button) findViewById();
stop = (Button) findViewById();
reset = (Button) findViewById();
format = (Button) findViewById(.set_format);
clear_format = (Button) findViewById(.clear_format);
}
mStartListener = new OnClickListener() {
public void onClick(View v) {
();
}
};
mStopListener = new OnClickListener() {
public void onClick(View v) {
();
}
};
mResetListener = new OnClickListener() {
public void onClick(View v) {
(());
}
};
mSetFormatListener = new OnClickListener() {
public void onClick(View v) {
("Formatted time (%s)");
}
};
mClearFormatListener = new OnClickListener() {
public void onClick(View v) {
(null);
}
};
@Override
public void onClick(View v) {
switch (()) {
case :
();// Start timing break;
case :
();// Pause timekeeping break;
case :
(());// milliseconds from booting up now break;
case .set_format:
// Requires a String variable and uses "%s" to represent the timing information ("Time cumulative: %s seconds");
break;
case .clear_format:
(null);
break;
}
}
}
Layout file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:andro
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:padding="10dip" >
<Chronometer
android:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:format="@string/chronometer_initial_format"
android:paddingBottom="30dip"
android:paddingTop="30dip"
android:textSize="15sp" />
<Button
android:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="start" >
<requestFocus />
</Button>
<Button
android:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="pause" >
</Button>
<Button
android:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Re-time" >
</Button>
<Button
android:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Information description" >
</Button>
<Button
android:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel Instructions" >
</Button>
</LinearLayout>
PS: Here are a few related online tools for your reference:
Online stopwatch tool:
http://tools./bianmin/miaobiao
Unix timestamp conversion tool:
http://tools./code/unixtime
For more information about Android related content, please check out the topic of this site:Android date and time operation skills summary》、《Android development introduction and advanced tutorial》、《Summary of the usage of basic Android components》、《Android View View Tips Summary》、《Android layout layout tips summary"and"Android control usage summary》
I hope this article will be helpful to everyone's Android programming design.