@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ruler = (Ruler) findViewById(R.id.ruler); result = (TextView) findViewById(R.id.result_text); ruler.setRulerTag("时间轴demo"); ruler.setRulerHandler(rulerHandler); editText = (EditText) findViewById(R.id.edit_text); button = (Button) findViewById(R.id.button); button.setOnClickListener(clickListener); ruler2 = (Ruler) findViewById(R.id.ruler2); ruler2.setRulerTag("刻尺demo"); result2 = (TextView) findViewById(R.id.result_text2); ruler2.setRulerHandler(rulerHandler2); editText2 = (EditText) findViewById(R.id.edit_text2); button2 = (Button) findViewById(R.id.button2); button2.setOnClickListener(clickListener); }