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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.example.android.apis.view;
     18 
     19 // Need the following import to get access to the app resources, since this
     20 // class is in a sub-package.
     21 import com.example.android.apis.R;
     22 
     23 import android.app.Activity;
     24 import android.os.Bundle;
     25 import android.os.SystemClock;
     26 import android.view.View;
     27 import android.view.View.OnClickListener;
     28 import android.widget.Button;
     29 import android.widget.Chronometer;
     30 
     31 public class ChronometerDemo extends Activity {
     32     Chronometer mChronometer;
     33 
     34     @Override
     35     protected void onCreate(Bundle savedInstanceState) {
     36         super.onCreate(savedInstanceState);
     37 
     38         setContentView(R.layout.chronometer);
     39 
     40         Button button;
     41 
     42         mChronometer = (Chronometer) findViewById(R.id.chronometer);
     43 
     44         // Watch for button clicks.
     45         button = (Button) findViewById(R.id.start);
     46         button.setOnClickListener(mStartListener);
     47 
     48         button = (Button) findViewById(R.id.stop);
     49         button.setOnClickListener(mStopListener);
     50 
     51         button = (Button) findViewById(R.id.reset);
     52         button.setOnClickListener(mResetListener);
     53 
     54         button = (Button) findViewById(R.id.set_format);
     55         button.setOnClickListener(mSetFormatListener);
     56 
     57         button = (Button) findViewById(R.id.clear_format);
     58         button.setOnClickListener(mClearFormatListener);
     59     }
     60 
     61     View.OnClickListener mStartListener = new OnClickListener() {
     62         public void onClick(View v) {
     63             mChronometer.start();
     64         }
     65     };
     66 
     67     View.OnClickListener mStopListener = new OnClickListener() {
     68         public void onClick(View v) {
     69             mChronometer.stop();
     70         }
     71     };
     72 
     73     View.OnClickListener mResetListener = new OnClickListener() {
     74         public void onClick(View v) {
     75             mChronometer.setBase(SystemClock.elapsedRealtime());
     76         }
     77     };
     78 
     79     View.OnClickListener mSetFormatListener = new OnClickListener() {
     80         public void onClick(View v) {
     81             mChronometer.setFormat("Formatted time (%s)");
     82         }
     83     };
     84 
     85     View.OnClickListener mClearFormatListener = new OnClickListener() {
     86         public void onClick(View v) {
     87             mChronometer.setFormat(null);
     88         }
     89     };
     90 }
     91