嗨我想添加事件到Android日曆。我是android開發新手。請幫助我如何添加事件到Android日曆。這是我的代碼不起作用。當我運行它時,它給了我一個消息「應用程序日曆(process com.something.something)已經意外停止」並且具有「強制停止」這個按鈕。這裏是我的代碼使用java添加安卓日曆事件
package com.zafar.calendar;
import android.app.Activity;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
public class Calendar extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Cursor cursor=getContentResolver().query(Uri.parse("content://com.android.calendar/calendars"), new String[]{"_id", "displayname"}, null, null, null);
cursor.moveToFirst();
// Get calendars name
String calendarNames[] = new String[cursor.getCount()];
// Get calendars id
int[] calendarId = new int[cursor.getCount()];
for (int i = 0; i < calendarNames.length; i++)
{
calendarId[i] = cursor.getInt(0);
calendarNames[i] = cursor.getString(1);
cursor.moveToNext();
}
cursor.close();
ContentValues contentEvent = new ContentValues();
contentEvent.put("calendar_id", 1);
contentEvent.put("title", "Wedding");
contentEvent.put("eventLocation", "New York");
contentEvent.put("dtstart","1335432431000");
contentEvent.put("dtend","1335436031000");
Uri eventsUri = Uri.parse("content://com.android.calendar/events");
getContentResolver().insert(eventsUri, contentEvent);
}
}
更新 這裏是我的menifest文件
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".Calendar"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<uses-permission android:name="android.permission.READ_CALENDAR"></uses-permission>
<uses-permission android:name="android.permission.WRITE_CALENDAR"></uses-permission>
</application>
logcat的
我是新android開發。我完全不知道logcat。我跑在命令提示符下的logcat條命令,我在你的代碼得到這個
04-28 09:16:57.956: D/AndroidRuntime(333): Shutting down VM
04-28 09:16:57.956: W/dalvikvm(333): threadid=1: thread exiting with uncaught exception (group=0x40015560)
04-28 09:16:57.975: E/AndroidRuntime(333): FATAL EXCEPTION: main
04-28 09:16:57.975: E/AndroidRuntime(333): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.zafar.calendar/com.zafar.calendar.Calendar}: java.lang.NullPointerException
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.os.Handler.dispatchMessage(Handler.java:99)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.os.Looper.loop(Looper.java:123)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.main(ActivityThread.java:3683)
04-28 09:16:57.975: E/AndroidRuntime(333): at java.lang.reflect.Method.invokeNative(Native Method)
04-28 09:16:57.975: E/AndroidRuntime(333): at java.lang.reflect.Method.invoke(Method.java:507)
04-28 09:16:57.975: E/AndroidRuntime(333): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-28 09:16:57.975: E/AndroidRuntime(333): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-28 09:16:57.975: E/AndroidRuntime(333): at dalvik.system.NativeStart.main(Native Method)
04-28 09:16:57.975: E/AndroidRuntime(333): Caused by: java.lang.NullPointerException
04-28 09:16:57.975: E/AndroidRuntime(333): at com.zafar.calendar.Calendar.onCreate(Calendar.java:51)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-28 09:16:57.975: E/AndroidRuntime(333): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
04-28 09:16:57.975: E/AndroidRuntime(333): ... 11 more
04-28 09:21:58.095: I/Process(333): Sending signal. PID: 333 SIG: 9
你給了'' '' –
2012-04-28 08:37:11
是的,我使用權限,你現在可以看到這個清單文件了,怎麼解決這個問題? – 2619 2012-04-28 08:39:49
Uri.parse(」content://com.android.calendar/calendar「)更改爲Uri.parse(」content://com.android.calendar/Calendars「) – 2012-04-28 08:41:41