package com.example.king.chronometer; import android.app.Activity; import android.os.SystemClock; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Chronometer; public class MainActivity extends Activity { private Button start, stop, rest; Chronometer chronometer = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); start = (Button) findViewById(R.id.start); stop = (Button) findViewById(R.id.stop); rest = (Button) findViewById(R.id.rest); chronometer = (Chronometer) findViewById(R.id.chronometer); start.setOnClickListener(clickListener); stop.setOnClickListener(clickListener); rest.setOnClickListener(clickListener); } private View.OnClickListener clickListener = new View.OnClickListener() { @Override public void onClick(View v) { switch (v.getId()) { case R.id.start: //调用start()方法开始计时 chronometer.setBase(convertStrTimeToLong(chronometer.getText().toString())); chronometer.start(); start.setText("正在计时..."); break; case R.id.stop: //调用stop()方法停止计时 chronometer.stop(); start.setText("继续计时"); break; case R.id.rest: //调用stop()方法停止计时 chronometer.setBase(SystemClock.elapsedRealtime()); chronometer.stop(); start.setText("正在计时..."); break; default: break; } } }; public long convertStrTimeToLong(String strTime) { String[] timeArry = strTime.split(":"); long longTime = 0; longTime = Integer.parseInt(timeArry[0]) * 1000 * 60 + Integer.parseInt(timeArry[1]) * 1000; return longTime-SystemClock.elapsedRealtime() ; } }
chronoment暂停方法的实现
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转载自blog.csdn.net/qq_28938627/article/details/51671973
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