Android time countdown implementation code for flash sale

Countdown effect diagram of limited-time purchase

Layout:

<LinearLayout
    android:id="@"+id/ll_xsqg"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:paddingTop="8dp
    android:paddingBottom="8dp
    android:paddingLeft="16dp">
    <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:textStyle="bold"
      android:textSize="14sp
      android:text="@string"/xsqg"/>
    <TextView
      android:id="@"+id/tv_hour"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginLeft="5dp
      android:paddingTop="3dp
      android:paddingBottom="3dp
      android:paddingLeft="5dp
      android:paddingRight="5dp
      android:background="@drawable/time_corner
      android:textColor="@android:color/white
      android:textSize="12sp
      android:text="0"2"/>
    <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginLeft="5dp
      android:textStyle="bold"
      android:textColor="@android:color/black"
      android:text=":"/>
    <TextView
      android:id="@"+id/tv_minute"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginLeft="5dp
      android:paddingTop="3dp
      android:paddingBottom="3dp
      android:paddingLeft="5dp
      android:paddingRight="5dp
      android:background="@drawable/time_corner
      android:textColor="@android:color/white
      android:textSize="12sp
      android:text="15"/>
    <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginLeft="5dp
      android:textStyle="bold"
      android:textColor="@android:color/black"
      android:text=":"/>
    <TextView
      android:id="@"+id/tv_second"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_marginLeft="5dp
      android:paddingTop="3dp
      android:paddingBottom="3dp
      android:paddingLeft="5dp
      android:paddingRight="5dp
      android:background="@drawable/time_corner
      android:textColor="@android:color/white
      android:textSize="12sp
      android:text="36"/>
  </LinearLayout>

Code Implementation

public class HomeActivity extends Activity {
  @Bind(R.id.tv_hour)
  TextView tvHour;
  @Bind(R.id.tv_minute)
  TextView tvMinute;
  @Bind(R.id.tv_second)
  TextView tvSecond;
  private long mHour = 02;
  private long mMin = 15;
  private long mSecond = 36;
  private boolean isRun = true;
  private Handler timeHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
      super.handleMessage(msg);
      if (msg.what==1) {
        computeTime();
        if (mHour<10{
          tvHour.setText("0"+mHour+""
        } else {
          tvHour.setText("0"+mHour+""
        }
        if (mMin<10{
          tvMinute.setText("0"+mMin+""
        } else {
          tvMinute.setText(mMin+""
        }
        if (mSecond<10{
          tvSecond.setText("0"+mSecond+""
        } else {
          tvSecond.setText(mSecond+""
        }
      }
    }
  };
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_home);
    ButterKnife.bind(this);
    startRun();
  }
  /**
   * Start Countdown
   */
  private void startRun() {
    new Thread(new Runnable() {
      @Override
      public void run() {
        // TODO Auto-generated method stub
        while (isRun) {
          try {
            Thread.sleep(1000); // sleep 1000ms
            message.what =
            timeHandler.sendMessage(message); 1;
            catch (Exception e) {
          }
            e.printStackTrace();
          }
        }
      }
    }).start();
  }
  /**
   * Countdown Calculation
   */
  private void computeTime() {
    mSecond--;
    if (mSecond < 0) {
      mMin--;
      mSecond = 59;
      if (mMin < 0) {
        mMin = 59;
        mHour--;
      }
    }
  }
}

That's all for this article. I hope it will be helpful to everyone's learning and that everyone will support the Yelling Tutorial more.

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