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標題: widget倒數計日器製作(程式碼分享) [打印本頁]

作者: resion 時間: 2012-6-15 22:55
標題: widget倒數計日器製作(程式碼分享)
倒數計日器:

很簡單的widget，網路上也有一些教學

不過不知道為什麼

總是會有一些錯誤

經過我三天的debug終於完成(我比較弱...)

而在網路上很多人都有開放原始碼.但是卻都沒有完整的解說... 所以在這邊跟大家分享我的源使碼

更詳細的請觀看我的網站(有圖解說):http://orzismylife.blogspot.tw/2012/05/2012-05-24-android.html

import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Timer;
import java.util.TimerTask;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.widget.RemoteViews;
public class MAGIC_ENDWORDActivity extends AppWidgetProvider {
/** Called when the activity is first created. */

@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
         int[] appWidgetIds) {

      Timer timer = new Timer();
      timer.scheduleAtFixedRate(new MyTime(context,appWidgetManager), 1, 60000);
      super.onUpdate(context, appWidgetManager, appWidgetIds);
}

private class MyTime extends TimerTask{
      RemoteViews remoteViews;
      AppWidgetManager appWidgetManager;
      ComponentName thisWidget;
      public MyTime(Context context,AppWidgetManager appWidgetManager){
         this.appWidgetManager = appWidgetManager;
         remoteViews = new RemoteViews(context.getPackageName(),R.layout.main);
         thisWidget = new ComponentName(context,MAGIC_ENDWORDActivity.class);
      }
      public void run() {
         Date date = new Date();

         Calendar calendar = new GregorianCalendar(2012,Calendar.JUNE,04);  //可以設定自己想要的日期


         long days = (((calendar.getTimeInMillis()-date.getTime())/1000))/86400;  //由於匯出都是秒.所以需要除以86400.讓他變成以天來顯示
         remoteViews.setTextViewText(R.id.wordcup,"       "+days+"       ");
         appWidgetManager.updateAppWidget(thisWidget, remoteViews);

      }

}

}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@drawable/wordcup"
>
<TextView
android:id="@+id/wordcup"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="120px" //可以改字體大小
android:textColor="#ff0000"  //字體顏色
/>
</LinearLayout>

string.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, WidetDemo!</string>
<string name="app_name">DaysToWorldCup</string>
</resources>

然後在res底下創一個資料夾叫做 xml 並請再創一個layout 叫做:widget_provider.xml

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
android:minWidth="280dip"  //寬
android:minHeight="50dip"  //高
android:updatePeriodMillis="10000" //更新頻率，避免改太小會耗電
android:initialLayout="@layout/main"
/>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="Resion.com"
   android:versionCode="1"
   android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
      <receiver android:name="MAGIC_ENDWORDActivity"
               android:label="@string/app_name">
         <intent-filter>
            <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
         </intent-filter>
         <meta-data android:name="android.appwidget.provider"
                     android:resource="@xml/widget_provider"
         />
      </receiver>
</application>
<uses-sdk android:minSdkVersion="8" />
</manifest>

作者: kevin7799 時間: 2013-9-4 10:57
謝謝大大辛苦努力的分享

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