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Android开发之TimePicker控件用法实例详解

︶ㄣSDDLL学院 メ
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0714
这篇文章主要介绍了Android开发之TimePicker控件用法,结合实例形式详细分析了Android项目的建立及TimePicker控件的具体使用技巧,需要的朋友可以参考下

这篇文章主要介绍了Android开发之TimePicker控件用法,结合实例形式详细分析了Android项目的建立及TimePicker控件的具体使用技巧,需要的朋友可以参考下

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：

Android开发之TimePicker控件用法实例详解

如果：

return new timepickerdialog(this, mtimesetlistener, mhour, mminute, false);

Android开发之TimePicker控件用法实例详解

Android开发之TimePicker控件用法实例详解

代码部分：

mainactivity.java：

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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：

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<?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。