java - 如何在 Android Studio 中静默地将事件添加到日历中？

Question

我读了上一个问题Here ，但它并没有完全回答我的问题。我试图做一些简单的事情，比如按下按钮并输入一个事件，但程序不断崩溃。我的代码是:

package com.example.events;

import java.util.Calendar;

import android.content.ContentResolver;
import android.content.ContentValues;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.provider.CalendarContract;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import com.example.events.R;

 public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Button button = (Button) findViewById(R.id.button1);
    button.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {

            // Perform action on click
            addCalendarEvent();
        }

    });

}

public void addCalendarEvent() {

    long calID = 1;
    long startMillis = 0;
    long endMillis = 0;
    Calendar beginTime = Calendar.getInstance();
    beginTime.set(2015, 8, 9, 7, 30);
    startMillis = beginTime.getTimeInMillis();
    Calendar endTime = Calendar.getInstance();
    endTime.set(2015, 8, 9, 8, 45);
    endMillis = endTime.getTimeInMillis();

    ContentResolver cr = getContentResolver();
    ContentValues values = new ContentValues();
    values.put(CalendarContract.Events.DTSTART, startMillis);
    values.put(CalendarContract.Events.DTEND, endMillis);
    values.put(CalendarContract.Events.TITLE, "Jazzercise");
    values.put(CalendarContract.Events.DESCRIPTION, "Group workout");
    values.put(CalendarContract.Events.CALENDAR_ID, calID);
    values.put(CalendarContract.Events.EVENT_TIMEZONE, "America/New_York");
    Uri uri = cr.insert(CalendarContract.Events.CONTENT_URI, values);
   }
  }

我的 AndroidManifest.xml 看起来像这样

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.events" >
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <uses-sdk android:minSdkVersion="14" />
    <uses-permission android:name="android.permission.WRITE_CALENDAR" />
    <uses-permission android:name="android.permission.READ_CALENDAR" />
    <activity
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

</application>

所以，基本上我想做的是按下该按钮并将事件添加到日历中，而不提示用户输入任何详细信息。任何帮助，将不胜感激。这是错误的堆栈跟踪:

08-29 18:14:44.108  13218-13218/com.example.events E/dalvikvm﹕ >>>>> Normal User
08-29 18:14:44.118  13218-13218/com.example.events E/dalvikvm﹕ >>>>> com.example.events [ userId:0 | appId:10255 ]
08-29 18:14:52.106  13218-13218/com.example.events E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.events, PID: 13218
java.lang.SecurityException: Permission Denial: opening provider com.android.providers.calendar.CalendarProvider2 from ProcessRecord{44f66d78 13218:com.example.events/u0a255} (pid=13218, uid=10255) requires android.permission.READ_CALENDAR or android.permission.WRITE_CALENDAR
        at android.os.Parcel.readException(Parcel.java:1465)
        at android.os.Parcel.readException(Parcel.java:1419)
        at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:3299)
        at android.app.ActivityThread.acquireProvider(ActivityThread.java:4843)
        at android.app.ContextImpl$ApplicationContentResolver.acquireProvider(ContextImpl.java:2718)
        at android.content.ContentResolver.acquireProvider(ContentResolver.java:1390)
        at android.content.ContentResolver.insert(ContentResolver.java:1196)
        at com.example.events.MainActivity.addCalendarEvent(MainActivity.java:60)
        at com.example.events.MainActivity$1.onClick(MainActivity.java:33)
        at android.view.View.performClick(View.java:4753)
        at android.view.View$PerformClick.run(View.java:19562)
        at android.os.Handler.handleCallback(Handler.java:733)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:146)
        at android.app.ActivityThread.main(ActivityThread.java:5635)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
        at dalvik.system.NativeStart.main(Native Method)

Answer 1

您的堆栈跟踪表明您缺少权限。您需要将堆栈跟踪中提到的权限添加到您的 Android list 中。看到这个:How to add manifest permission to android application?