android开发_TimePicker控件

新建项目：

New Android Project->2 Project name:HelloSpinner3 Build Target:Android 2.24 Application name:HelloSpinner5 Package name:com.b5106 Create Activity:MainActivity7 Min SDK Version:98 Finish

运行效果：

如果：    return new TimePickerDialog(this, mTimeSetListener, mHour, mMinute,2                     false);

代码部分：

MainActivity.java

package com.b510; 2  3 import java.util.Calendar; 4  5 import android.app.Activity; 6 import android.app.Dialog; 7 import android.app.TimePickerDialog; 8 import android.os.Bundle; 9 import android.view.View;10 import android.view.View.OnClickListener;11 import android.widget.Button;12 import android.widget.TextView;13 import android.widget.TimePicker;14 15 public class HelloTimePicker extends Activity {16     /* 显示时间信息 */17     private TextView tvTimePickerDisplay;18     /* 设置时间按钮 */19     private Button btnTimePicker;20     /* 小时 */21     private int mHour;22     /* 分钟 */23     private int mMinute;24     /* 标识 dialog的id */25     static final int TIME_DIALOG_ID = 0;26 27     /** Called when the activity is first created. */28     @Override29     public void onCreate(Bundle savedInstanceState) {30         super.onCreate(savedInstanceState);31         setContentView(R.layout.main);32         33         this.tvTimePickerDisplay = (TextView) this34                 .findViewById(R.id.tv_timepicker_display);35         this.btnTimePicker = (Button) findViewById(R.id.btn_timepicker);36         btnTimePicker.setOnClickListener(listener);37 38         // get the current time39         final Calendar c = Calendar.getInstance();40         mHour = c.get(Calendar.HOUR_OF_DAY);41         mMinute = c.get(Calendar.MINUTE);42 43         // display the current date44         updateDisplay();45     }46 47     private OnClickListener listener = new OnClickListener() {48         @Override49         public void onClick(View v) {50             showDialog(TIME_DIALOG_ID);51         }52     };53 54     // updates the time we display in the TextView55     private void updateDisplay() {56         tvTimePickerDisplay.setText(new StringBuilder().append(pad(mHour)).append(":")57                 .append(pad(mMinute)));58     }59 60     private static String pad(int c) {61         if (c >= 10)62             return String.valueOf(c);63         else64             return "0" + String.valueOf(c);65     }66 67     // the callback received when the user "sets" the time in the dialog68     private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {69         public void onTimeSet(TimePicker view, int hourOfDay, int minute) {70             mHour = hourOfDay;71             mMinute = minute;72             updateDisplay();73         }74     };75 76     @Override77     protected Dialog onCreateDialog(int id) {78         switch (id) {79         case TIME_DIALOG_ID:80             return new TimePickerDialog(this, mTimeSetListener, mHour, mMinute,81                     true);82         }83         return null;84     }85 }

main.xml

<?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3     android:orientation="vertical" 4     android:layout_width="fill_parent" 5     android:layout_height="fill_parent" 6     > 7     <TextView   8         android:id="@+id/tv_timepicker_display" 9         android:layout_width="fill_parent" 10         android:layout_height="wrap_content" 11         />12      <Button13          android:id="@+id/btn_timepicker"14          android:layout_width="fill_parent"15          android:layout_height="wrap_content"16          android:text="Change the time"17      />18 </LinearLayout>