Android 对AlertDialog、DatePickerDialog、TimePickerDialog初步学习

本篇文章主要介绍了"Android 对AlertDialog、DatePickerDialog、TimePickerDialog初步学习"，主要涉及到方面的内容，对于Android开发感兴趣的同学可以参考一下： 1、首先声明所需变量：private Button buttondialogButton; private Button buttondatedialogBut...

1、首先声明所需变量：

private Button buttondialogButton;
private Button buttondatedialogButton;
private Button buttontimedialogButton;

private AlertDialog.Builder builder;
private DatePickerDialog datePickerDialog;
private TimePickerDialog timePickerDialog;

private int year, monthOfYear, dayOfMonth, hourOfDay, minute;

2、AlertDialog

builder = new AlertDialog.Builder(MainActivity.this);
		builder.setTitle("提示！");
		builder.setMessage("确定要。。。");
		builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "已确定", Toast.LENGTH_LONG)
						.show();
			}
		});
		builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(MainActivity.this, "已取消", Toast.LENGTH_LONG)
						.show();
			}
		});

实例一个Button进行该DiaLog的显示：

buttondialogButton = (Button) this.findViewById(R.id.button1);
		buttondialogButton.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				builder.show();
			}
		});

3、DatePickerDialog

实例一个日历，并对时间（年月日...）等变量进行初始化（初始化为当地当时）；

Calendar calendar = Calendar.getInstance();
		year = calendar.get(Calendar.YEAR);
		monthOfYear = calendar.get(Calendar.MONTH);
		dayOfMonth = calendar.get(Calendar.DAY_OF_MONTH);

                hourOfDay = calendar.get(Calendar.HOUR_OF_DAY);
		minute = calendar.get(Calendar.MINUTE);

实例化DatePickerDialog并由Button事件显示：

datePickerDialog = new DatePickerDialog(this, new OnDateSetListener() {

			@Override
			public void onDateSet(DatePicker view, int year, int monthOfYear,
					int dayOfMonth) {
				// TODO Auto-generated method stub
				Log.e(year + "/" + (monthOfYear+1) + "/"
						+ dayOfMonth);
			}
		}, year, monthOfYear, dayOfMonth);

		buttondatedialogButton = (Button) this.findViewById(R.id.button2);
		buttondatedialogButton.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				datePickerDialog.show();
			}
		});

4、TimePickerDialog

实例化TimePickerDialog并由Button事件显示：

timePickerDialog = new TimePickerDialog(this, new OnTimeSetListener() {

			@Override
			public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
				// TODO Auto-generated method stub
				Log.e(hourOfDay + "/" + minute);
			}
		}, hourOfDay, minute, true);

		buttontimedialogButton = (Button) this.findViewById(R.id.button3);
		buttontimedialogButton.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				timePickerDialog.show();
			}
		});

5、学习总结：

       如有不妥不足之处，请多指教。

以上就介绍了Android 对AlertDialog、DatePickerDialog、TimePickerDialog初步学习，包括了方面的内容，希望对Android开发有兴趣的朋友有所帮助。

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