時間設定調整

1.UI的xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="" />

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/textView1"

        android:layout_below="@+id/textView1"

        android:text="時間設定" />

</RelativeLayout>

2.主程式程式碼

import java.util.Calendar;

import android.os.Bundle;

import android.app.Activity;

import android.app.TimePickerDialog;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

import android.widget.TimePicker;

public class MainActivity extends Activity {

Button btn;

TextView tv;

private int hour, min;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

btn = (Button) this.findViewById(R.id.button1);

tv = (TextView) this.findViewById(R.id.textView1);

setDate();

btn.setOnClickListener(new OnClickListener() {

public void onClick(View arg0) {

setTimePickerDialog();

}

});

}

public void setTimePickerDialog() {

TimePickerDialog log = new TimePickerDialog(MainActivity.this, 1,

new TimePickerDialog.OnTimeSetListener() {

@Override

public void onTimeSet(TimePicker arg0, int hour, int min) {

MainActivity.this.hour = hour;

MainActivity.this.min = min;

tv.setText((MainActivity.this.hour < 10 ? "0"

+ MainActivity.this.hour

: MainActivity.this.hour)

+ ":"

+ (MainActivity.this.min < 10 ? "0"

+ MainActivity.this.min

: MainActivity.this.min));

}

}, hour, min, false);

log.show();

}

public void setDate() {

Calendar calendar = Calendar.getInstance();

hour = calendar.get(Calendar.HOUR_OF_DAY);

min = calendar.get(Calendar.MINUTE);

tv.setText((MainActivity.this.hour < 10 ? "0" + MainActivity.this.hour

: MainActivity.this.hour)

+ ":"

+ (MainActivity.this.min < 10 ? "0" + MainActivity.this.min

: MainActivity.this.min));

}

}