Cuiu's Home

public class MainActivity extends Activity {
Chronometer chronometer;
Button button;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findView();

chronometer.setOnChronometerTickListener(new OnChronometerTickListener() {
@Override
public void onChronometerTick(Chronometer arg0) {

setTitle("" + new Date().toLocaleString());
// 抓取系統時間印在title 計時功能;
}
});
}

boolean flag = false;

public void Click(View v)

{
flag = !flag;
if (flag) {
button.setText("開");
chronometer.setBase(SystemClock.elapsedRealtime());
// 重啟,歸0動作
chronometer.start();
} else {
button.setText("關");
chronometer.stop();
}
}

public void findView() {
chronometer = (Chronometer) this.findViewById(R.id.chronometer1);
button = (Button) this.findViewById(R.id.button1);
}

}

xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<Chronometer
android:id="@+id/chronometer1"
android:layout_width="100dp"
android:layout_height="50dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="74dp"
android:layout_marginTop="53dp"
android:text="Chronometer" />

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="@+id/chronometer1"
android:layout_marginTop="51dp"
android:onClick="Click"
android:text="關" />

</RelativeLayout>