jasonostrander / androiduifundamentals Goto Github PK

<TextView
    android:id="@+id/counter"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:padding="10dp"
    android:text="@string/default_value"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:textSize="50sp" >
</TextView>

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal" >

    <Button
        android:id="@+id/start_stop"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="@string/start" >
    </Button>

    <Button
        android:id="@+id/reset"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="@string/finish" >
    </Button>
</LinearLayout>

<ListView
    android:id="@+id/time_list"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="1" >

    <!-- Preview: listitem=@layout/time_row -->
</ListView>

private final MyHandler mHandler = new MyHandler(this);


/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Initialize the Timer
    TextView counter = (TextView) findViewById(R.id.counter);
    counter.setText(DateUtils.formatElapsedTime(0));

    Button startButton = (Button) findViewById(R.id.start_stop);
    startButton.setOnClickListener(this);

    Button stopButton = (Button) findViewById(R.id.reset);
    stopButton.setOnClickListener(this);

    if (mTimeListAdapter == null)
        mTimeListAdapter = new TimeListAdapter(this, 0);

    ListView list = (ListView) findViewById(R.id.time_list);
    list.setAdapter(mTimeListAdapter);

    if (Util.useStrictMode(this)) {
        StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
        .detectAll()
        .penaltyLog()
        .penaltyDialog()
        .build());
        StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
        .detectAll()
        .penaltyLog()
        .penaltyDialog()
        .build());
    }
}

@Override
protected void onDestroy() {
    mHandler.removeMessages(0);
    super.onDestroy();
}

@Override
public void onClick(View v) {
    TextView ssButton = (TextView) findViewById(R.id.start_stop);

    if (v.getId() == R.id.start_stop) {
        if (!isTimerRunning()) {
            startTimer();
            ssButton.setText(R.string.stop);
        } else {
            stopTimer();
            ssButton.setText(R.string.start);
        }
    } else if (v.getId() == R.id.reset) {
        resetTimer();
        TextView counter = (TextView) findViewById(R.id.counter);
        counter.setText(DateUtils.formatElapsedTime(0));
        ssButton.setText(R.string.start);
    }
}

private void startTimer() {
    mStart = System.currentTimeMillis();
    mHandler.removeMessages(0);
    mHandler.sendEmptyMessage(0);
}

private void stopTimer() {
    mHandler.removeMessages(0);
}

private boolean isTimerRunning() {
    return mHandler.hasMessages(0);
}

private void resetTimer() {
    stopTimer();
    if (mTimeListAdapter != null)
        mTimeListAdapter.add(mTime/1000);

    mTime = 0;
}

private static class MyHandler extends Handler {
    private final WeakReference<TimeTrackerActivity> mActivity;

    public MyHandler(TimeTrackerActivity activity) {
      mActivity = new WeakReference<TimeTrackerActivity>(activity);
    }

    @Override
    public void handleMessage(Message msg) {
      TimeTrackerActivity activity = mActivity.get();
      if (activity != null) {
          long current = System.currentTimeMillis();
          mTime += current - mStart;
          mStart = current;


          TextView counter = (TextView) activity.findViewById(R.id.counter);
          counter.setText(DateUtils.formatElapsedTime(mTime/1000));

          this.sendEmptyMessageDelayed(0, 250);
      }
    }
  }

<TextView android:id="@+id/lap_name" android:layout_height="wrap_content"
    android:text="@string/default_value_lap" android:layout_weight="1" android:layout_width="0dp" />

<TextView android:id="@+id/lap_time" android:layout_height="wrap_content"
    android:text="@string/default_value_time" android:layout_weight="1"
    android:layout_width="0dp" android:gravity="right" />

<string name="app_name">TimeTracker</string>
<string name="action_settings">Settings</string>

<string name="elapsed_time_format">%1$d:%2$02d:%3$02d:%4$03d</string>
<string name="finish">Finish</string>
<string name="start">Start</string>
<string name="stop">Stop</string>
<string name="task_name">Task %1$d</string>
<string name="default_value">0</string>
<string name="default_value_lap">Lap 1</string>
<string name="default_value_time">00:00:00</string>