Android开发之TimePicker控件用法实例详解

本文实例分析了Android开发之TimePicker控件用法。分享给大家供大家参考，具体如下：

新建项目：

New Android Project->
Project name:HelloSpinner
Build Target:Android 2.2
Application name:HelloSpinner
Package name:com.b510
Create Activity:MainActivity
Min SDK Version:9
Finish

运行效果：

如果：

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

代码部分：

MainActivity.java：

package com.b510;
import java.util.Calendar;
import android.app.Activity;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TimePicker;
public class HelloTimePicker extends Activity {
 /* 显示时间信息 */
 private TextView tvTimePickerDisplay;
 /* 设置时间按钮 */
 private Button btnTimePicker;
 /* 小时 */
 private int mHour;
 /* 分钟 */
 private int mMinute;
 /* 标识 dialog的id */
 static final int TIME_DIALOG_ID = 0;
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.main);
   this.tvTimePickerDisplay = (TextView) this
       .findViewById(R.id.tv_timepicker_display);
   this.btnTimePicker = (Button) findViewById(R.id.btn_timepicker);
   btnTimePicker.setOnClickListener(listener);
   // get the current time
   final Calendar c = Calendar.getInstance();
   mHour = c.get(Calendar.HOUR_OF_DAY);
   mMinute = c.get(Calendar.MINUTE);
   // display the current date
   updateDisplay();
 }
 private OnClickListener listener = new OnClickListener() {
   @Override
   public void onClick(View v) {
     showDialog(TIME_DIALOG_ID);
   }
 };
 // updates the time we display in the TextView
 private void updateDisplay() {
   tvTimePickerDisplay.setText(new StringBuilder().append(pad(mHour)).append(":")
       .append(pad(mMinute)));
 }
 private static String pad(int c) {
   if (c >= 10)
     return String.valueOf(c);
   else
     return "0" + String.valueOf(c);
 }
 // the callback received when the user "sets" the time in the dialog
 private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
   public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
     mHour = hourOfDay;
     mMinute = minute;
     updateDisplay();
   }
 };
 @Override
 protected Dialog onCreateDialog(int id) {
   switch (id) {
   case TIME_DIALOG_ID:
     return new TimePickerDialog(this, mTimeSetListener, mHour, mMinute,
         true);
   }
   return null;
 }
}

main.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 >
<TextView
 android:id="@+id/tv_timepicker_display"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
/>
<Button
 android:id="@+id/btn_timepicker"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="Change the time"
/>
</LinearLayout>

希望本文所述对大家Android程序设计有所帮助。