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  • Android开发中的AlertDialog

    最近做了一个Android项目,对AlertDialog有一些了解,贴一些心得上来。

    日期选择对话框:
    图片

    代码:

    代码
    Calendar c = Calendar.getInstance();
    DatePickerDialog ad
    = new DatePickerDialog(this,
    new OnDateSetListener() {
    public void onDateSet(DatePicker view, int year,
    int monthOfYear, int dayOfMonth) {
    // TODO Auto-generated method stub
    String date = String.valueOf(year) + "-"
    + String.valueOf(monthOfYear + 1) + "-"
    + String.valueOf(dayOfMonth);
    }
    }, c.get(Calendar.YEAR), c.get(Calendar.MONTH), c
    .get(Calendar.DATE));
    ad.show();

    时间选择对话框:
    图片

    代码:

    代码
    TimePickerDialog ad = new TimePickerDialog(this,
    new OnTimeSetListener() {
    public void onTimeSet(TimePicker view, int hourOfDay,
    int minute) {
    // TODO Auto-generated method stub

    String timer
    =“”;
    if (hourOfDay < 10) {
    timer
    = "0" + String.valueOf(hourOfDay) + ":"
    + String.valueOf(minute);
    }
    else if (minute < 10) {
    timer
    = String.valueOf(hourOfDay) + ":" + "0"
    + String.valueOf(minute);
    }
    else if (hourOfDay < 10 && minute < 10) {
    timer
    = "0" + String.valueOf(hourOfDay) + ":" + "0"
    + String.valueOf(minute);
    }
    else {
    timer
    = String.valueOf(hourOfDay) + ":"
    + String.valueOf(minute);
    }
    }, c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE),
    true);
    ad.show();


    多选对话框:
    图片

    代码:

    代码

    provinces
    = new String[] { getResources().getString(R.string.Monday),
    getResources().getString(R.string.Tuesday),
    getResources().getString(R.string.Wednesday),
    getResources().getString(R.string.Thursday),
    getResources().getString(R.string.Friday),
    getResources().getString(R.string.Saturday),
    getResources().getString(R.string.Sunday) };


    AlertDialog ad
    = new AlertDialog.Builder(this)
    .setIcon(R.drawable.image).setTitle(R.string.repeattitle)
    .setMultiChoiceItems(provinces,
    -1,
    new DialogInterface.OnMultiChoiceClickListener()
    {
    public void onClick(DialogInterface dialog,int whichButton, boolean isChecked)
    {

    }
    }).setPositiveButton(R.string.ok,
    new DialogInterface.OnClickListener()
    {
    public void onClick(DialogInterface dialog,int whichButton)
    {
    @SuppressWarnings(
    "unused")
    int count = lv.getCount();
    String s
    = String.valueOf(R.string.chocies);
    String s1
    ="";
    for (int i = 0; i < provinces.length; i++)
    {

    if (lv.getCheckedItemPositions().get(i))
    {
    s
    += i + ":"+ lv.getAdapter().getItem(i)+ " ";
    }
    }
    if (lv.getCheckedItemPositions().size() > 0)
    {
    Toast.makeText(getApplicationContext(),getResources().getString(R.string.chocies)
    +s, Toast.LENGTH_LONG).show();
    }
    else
    {

    Toast.makeText(getApplicationContext(), getResources().getString(R.string.nochocies), Toast.LENGTH_LONG).show();
    }

    }
    }).setNegativeButton(R.string.cancle,
    null).create();
    lv
    = ad.getListView();
    ad.show();


    单选对话框:

    图片

    代码:

    代码
    provinces = new String[] { getResources().getString(R.string.Monday),
    getResources().getString(R.string.Tuesday),
    getResources().getString(R.string.Wednesday),
    getResources().getString(R.string.Thursday),
    getResources().getString(R.string.Friday),
    getResources().getString(R.string.Saturday),
    getResources().getString(R.string.Sunday) };

    AlertDialog ad
    = new AlertDialog.Builder(this)
    .setIcon(R.drawable.image).setTitle(R.string.repeattitle)
    .setSingleChoiceItems(provinces,
    -1, new OnClickListener() {

    public void onClick(DialogInterface dialog, int which) {
    // TODO Auto-generated method stub

    }
    }).setPositiveButton(R.string.ok,
    new DialogInterface.OnClickListener() {

    public void onClick(DialogInterface dialog,
    int which) {
    // TODO Auto-generated method stub
    @SuppressWarnings("unused")
    int count = lv.getCount();
    String s
    = String.valueOf(R.string.chocies);
    String s1
    = "";
    for (int i = 0; i < provinces.length; i++) {

    if (lv.getCheckedItemPositions().get(i)) {
    s
    = (String) lv.getAdapter().getItem(i);
    }
    else {
    Toast
    .makeText(
    getApplicationContext(),
    getResources()
    .getString(
    R.string.updateenablewishfail),
    Toast.LENGTH_LONG)
    .show();
    }
    }
    }
    if (lv.getCheckedItemPositions().size() > 0) {
    Toast.makeText(
    getApplicationContext(),
    getResources().getString(
    R.string.chocies)
    + s, Toast.LENGTH_LONG)
    .show();
    }
    else {
    Toast.makeText(
    getApplicationContext(),
    getResources().getString(
    R.string.nochocies),
    Toast.LENGTH_LONG).show();
    }

    }
    }).setNegativeButton(R.string.cancle,
    null).create();
    lv
    = ad.getListView();
    ad.show();


    待输入框的对话框:
    图片

    代码:     

    代码
    EditText edt = new EditText(ActivityNoteBooks.this);

    //弹出对话框的时候里面带有文字
    edt.setText(text);
    AlertDialog ad
    = new AlertDialog.Builder(this).setTitle(
    R.string.wishnametitle).setView(edt).setPositiveButton(
    R.string.ok,
    new OnClickListener() {
    public void onClick(DialogInterface dialog, int which) {
    // TODO Auto-generated method stub
    String s = edt.getText().toString();
    }
    }).setNegativeButton(R.string.cancle,
    null).create();
    ad.show();
    }

    感悟:对于AlertDialog一类的对话框有很多布局格式,可以根据自己的需要自己去通过XML布局,然后嵌套到AlertDialog中去。

    参考:http://www.eoeandroid.com/thread-45576-1-1.html  我在eoeAndroid中的帖子

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  • 原文地址:https://www.cnblogs.com/tanlon/p/1924740.html
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