android的时间选择器和弹窗

时间选择器和弹窗的示例，不知道是否规范，瞎逼写的，只能确定能用

时间选择器

public void GetDateTime() {
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);
        int hour = c.get(Calendar.HOUR_OF_DAY);
        int minute = c.get(Calendar.MINUTE);

        DatePickerDialog picker = new DatePickerDialog(getActivity(), new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker datePicker, int year, int month, int day) {
                String date = year + "-" + (month + 1) + "-" + day;
                Log.i(TAG, "DATE:" + date);
                TimePickerDialog timePickerDialog = new TimePickerDialog(getActivity(), new TimePickerDialog.OnTimeSetListener(){
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        String t = String.format(" %02d:%02d", hourOfDay, minute);
                        Log.i("TimePickerFragment", "onTimeSet: " + t);
                    }
                }, hour, minute, DateFormat.is24HourFormat(getActivity()));
                timePickerDialog.show();
            }
        }, year, month, day);

        picker.show();

    }

带确认的消息弹窗

private void checkPost() {
     AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
     builder.setTitle("提示");
     String msg = "lalallal";
     builder.setMessage(msg);
     builder.setPositiveButton("确定", (dialog, which) -> {
         dialog.dismiss();
     });
     builder.setNegativeButton("取消", (dialog, which) -> {
         dialog.dismiss();
     });
     builder.create().show();
 }

带输入框的弹窗

private void inputText(){
    final EditText inputServer = new EditText(getActivity());
    //设置默认值
    inputServer.setText("123456");
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    builder.setTitle("输入").setIcon(android.R.drawable.ic_dialog_info).setView(inputServer)
            .setNegativeButton("取消", null);
    builder.setPositiveButton("确认", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
            String text = inputServer.getText().toString();
            Log.i(TAG, "text: " + text);
            //getUserIDFromQimingID(inputServer.getText().toString());
        }
    });
    builder.show();
}

简单提示

Toast.makeText(getActivity(), "长度错误:"+text.length(), Toast.LENGTH_LONG).show();