Question

我开发了一个应用程序，通过使用以下内容访问日历事件，调用日志和收件箱消息：

cursor = this.contentResolver.query(CallLog.Calls.CONTENT_URI, projection, selection, null, order);

该应用程序在Galaxy SII中完美运行但是当我在XPeria U中安装它时它无法工作，可能是因为该手机以不同的方式管理日历，电话和消息。如果我必须为世界上的每部手机开发应用程序，这不是一件好事。我尝试了一些像CalendarContract.Events这样的Android类，但它的API级别太难了，我不希望这样，因为它在大多数手机中都不起作用。有没有一种很好的标准方法可以在大量设备上运行？谢谢！

package bembibre.coolstar.windowsmobilewidget.backend;

import java.util.ArrayList;
import java.util.List;

import bembibre.coolstar.windowsmobilewidget.apiindependent.ApiIndependentCallLog;

import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.provider.CallLog;
import android.util.Log;

public class CallsContentResolver {
public static final String[] projection = {
    CallLog.Calls.CACHED_NAME,
    CallLog.Calls.DATE,
};

public static final String selection = "((" + CallLog.Calls.TYPE + " = " +
CallLog.Calls.MISSED_TYPE + ") AND NOT(" +
ApiIndependentCallLog.instance().CALLS_IS_READ + "))";

private static final int MAX_NUM_CALLS = 3;

private static final String order = CallLog.Calls.DATE + " DESC LIMIT " + MAX_NUM_CALLS;

private ContentResolver contentResolver;

public CallsContentResolver(Context ctx) {
    this.contentResolver = ctx.getContentResolver();
}

public void readCursor(List<Call> calls, Cursor cursor){
    while (cursor.moveToNext()) {
        String cached_name = cursor.getString(cursor.getColumnIndex(
            CallLog.Calls.CACHED_NAME)
        );

        long date = cursor.getLong(cursor.getColumnIndex(
            CallLog.Calls.DATE)
        );

        Call call = new Call(cached_name, date);
        calls.add(0, call);
    }
}

public List<Call> getMissedCalls(){
    List<Call> calls = new ArrayList<Call>();
    Cursor cursor = null;

    try{
        cursor = this.contentResolver.query(CallLog.Calls.CONTENT_URI, projection, selection, null, order);
        if(cursor.getCount() > 0) {
            this.readCursor(calls, cursor);
        }
    }
    catch(Exception e){
        Log.d("EXCEPCIÓN", e.getMessage());
    }
    finally{
        if(cursor != null){
            cursor.close();
        }
    }

    return calls;
}
}

Answer 1

查看日历提供程序（http://developer.android.com/guide/topics/providers/calendar-provider.html）和联系人提供程序（http://developer.android.com/guide/topics/providers/contacts-provider.html）。

Answer 2

您可以从此查询中获取日历事件

long after = date.getTime();
long current = new Date().getTime();
long millisOfOne = 1000;
long millisOftwoFour = 1000 * 60 * 60 * 24;

long millisOfTodayLast = date.getTime() + millisOftwoFour
                - millisOfOne;



Cursor cursor = context.getContentResolver().query(Uri.parse("content://com.android.calendar/events"),new String[] { "calendar_id", "title", "description","dtstart", "dtend", "eventLocation", "_id" },"dtstart >=" + after + " and dtstart<" + millisOfTodayLast,
            null, "dtstart ASC");

是否有标准方法来访问日历事件，呼叫日志和收件箱消息？

2 个答案: