Question

大家好，我想点击按钮时显示，两小时一分钟。

我的代码是：

button.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        int hour= timePicker.getCurrentHour();
        int minute=timePicker.getCurrentMinute();

        Toast.makeText(MainActivity.this,"CLOCK--> "+ String.valueOf(hour)+":"+String.valueOf(minute),Toast.LENGTH_LONG).show();

    }
});

但输出是例如＆＃34; 9：8＆＃34;。

我想要展示＆＃34; 09：08＆＃34;。

抱歉我的英文=）

Answer 1

你可以像这样使用：

String time = "";
    time = new SimpleDateFormat("HH:mm").format(new Date(System.currentTimeMillis()));

Answer 2

Try this
Toast.makeText(MainActivity.this,"CLOCK--> "+ String.format("%02d:%02d", hour, minute),Toast.LENGTH_LONG).show();

Answer 3

如果数字低于10

，则在左侧添加零

String hrstr = hour < 10 ? //If hour is lower than 10, add a zero on the left 
    '0' + hour : hour;
String minstr = min < 10 ? //If minute is lower than 10, add a zero on the left
    '0' + min : min;
Toast.makeText(MainActivity.this,"CLOCK--> "+ hrstr +":"+minstr,Toast.LENGTH_LONG).show();

Answer 4

尝试一下

Calendar mcurrentTime = Calendar.getInstance();
int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
int minute = mcurrentTime.get(Calendar.MINUTE);
TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(mContext, new TimePickerDialog.OnTimeSetListener() {
    @Override
    public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) {
        yourView.setText(String.format("%02d:%02d", selectedHour, selectedMinute));
    }
}, hour, minute, true);//Yes 24 hour time
mTimePicker.setTitle("Select Time");
mTimePicker.show();

ANDROID时间选择器如何以小时和分钟显示两个数字

4 个答案: