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Android开发之TimePicker控件用法实例详解

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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 {
  
  private TextView tvTimePickerDisplay;
  
  private Button btnTimePicker;
  
  private int mHour;
  
  private int mMinute;
  
  static final int TIME_DIALOG_ID = 0;
  
  @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:




更多关于Android相关内容感兴趣的读者可查看本站专题:《Android开发入门与进阶教程》、《Android多媒体操作技巧汇总(音频,视频,录音等)》、《Android基本组件用法总结》、《Android视图View技巧总结》、《Android布局layout技巧总结》及《Android控件用法总结》

希望本文所述对大家Android程序设计有所帮助。

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