Android用Time和Calendar获取系统当前时间源码分享(年月日时分秒周几)

importandroid.app.Activity;

importandroid.os.Bundle;

importandroid.text.format.Time;

importandroid.view.View;

importandroid.widget.RelativeLayout;

importandroid.widget.TextView;

importjava.util.Calendar;

importbutterknife.BindView;

importbutterknife.ButterKnife;

importbutterknife.OnClick;

publicclassMainActivityextendsActivity {

 @BindView(R.id.tv_time)

 TextView tvTime;

 @BindView(R.id.activity_main)

 RelativeLayout activityMain;

 @BindView(R.id.tv_cal)

 TextView tvCal;

 Time time;

 @Override

 protectedvoidonCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_main);

  ButterKnife.bind(this);

  tvTime.setText("Time类");

  tvCal.setText("Calender类");

  initTime();

 }

 privatevoidinitTime() {

  time =newTime();

  time.setToNow();

 }

 @OnClick({R.id.tv_cal,R.id.tv_time})

 publicvoidonClick(View view) {

  switch(view.getId()) {

   caseR.id.tv_time://点击第一个

    //月份是从0-11算的，所以显示的话要+1

    String times = time.year +"年"+ time.month+1+"月"+ time.monthDay

      +"日"+ time.hour +"时"+ time.minute +"分"+ time.second +"秒"

      +":现在是一年中的第"+ time.yearDay +"天";

    tvTime.setText(times);

    break;

   caseR.id.tv_cal:

    Calendar cal=Calendar.getInstance();

    String time_cal=""+cal.get(Calendar.YEAR)+"-"+cal.get(Calendar.MONTH)+1+"-"+cal.get(Calendar.DATE)+" "

      +cal.get(Calendar.HOUR_OF_DAY)+":"+cal.get(Calendar.MINUTE);

    tvCal.setText(time_cal);

    break;

  }

 }

 @Override

 protectedvoidonDestroy() {

  super.onDestroy();

//  Unbinder unbinder=ButterKnife.bind(this);

//  unbinder.unbind();

  ButterKnife.bind(this).unbind();

 }

}