Dialog

Base class for Dialogs.

子类 AlertDialog

A subclass of Dialog that can display one, two or three buttons. If you only want to display a String in this dialog box, use the setMessage() method.

If you want to display a more complex view.

直接创建时，提示：‘AlertDialog(android.content.Context)’ has protected access in ‘android.app.AlertDialog’

使用内部类 AlertDialog.Builder创建

       	mContext=this;

        AlertDialog.Builder dialog=new AlertDialog.Builder(mContext);
        dialog.setTitle("");
        dialog.setMessage("");
        dialog.setPositiveButton("", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {

            }
        });

//        重点
        dialog.show();

//        dialog.setNegativeButton();
//        dialog.setNeutralButton();

        int checkedItem = 0;
        String items[]= new String[]{"a,b,c"};
//        params: 选项，默认选中，点击监听
        dialog.setSingleChoiceItems(items, checkedItem, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {

//                dialogInterface.dismiss();
            }
        });

        String items2[]= new String[]{"a,b,c"};
        boolean[] checkedItem2={false,false,false};
//        params: 选项，默认选中，点击监听
        dialog.setMultiChoiceItems(items2, checkedItem2, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i, boolean b) {
//                dialogInterface.dismiss();
            }
        });

复杂布局:

        View myView=new TextView(mContext);
        FrameLayout fl = (FrameLayout) findViewById(R.id.custom);
        fl.addView(myView, new FrameLayout.LayoutParams(MATCH_PARENT, WRAP_CONTENT));
        dialog.setView(fl);

——子类 DatePickerDialog, ProgressDialog, TimePickerDialog

ProgressDialog被弃用，被ProgressBar代替。

DatePickerDialog

        int year = 0;
//        注意月份是从0开始的
        int monthOfYear = 0;
        int dayOfMonth = 0;
        DatePickerDialog datePickerDialog= new DatePickerDialog(mContext,new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker datePicker, int i, int i1, int i2) {

            }
        },year,monthOfYear,dayOfMonth);
    }
    
//      重点
        datePickerDialog.show();

TimePickerDialog

        int hourOfDay=0;
        int minute=0;
        boolean is24HourView=true;
        TimePickerDialog timePickerDialog=new TimePickerDialog(mContext, new TimePickerDialog.OnTimeSetListener() {
            @Override
            public void onTimeSet(TimePicker timePicker, int i, int i1) {

            }
        },hourOfDay,minute, is24HourView);

//      重点
        timePickerDialog.show();