android - 如何在android studio中修复 "Unknown URL content://com.new.newapp.locations/locations"

Question

这是我遇到的错误:

Caused by: java.lang.IllegalArgumentException: Unknown URL  content://com.new.newapp.locations/locations
        at android.content.ContentResolver.insert(ContentResolver.java:1213)
        at com.new.newapp.activity.FragmentGoogleMap$LocationInsertTask.doInBackground(FragmentGoogleMap.java:364)
        at com.new.newapp.activity.FragmentGoogleMap$LocationInsertTask.doInBackground(FragmentGoogleMap.java:360)

我研究了这个问题并发现了这些类似的问题: Link1 Link2 Link3

这些都没有帮助。最让我困扰的是，当我使用 eclipse 时，我没有遇到这个问题，但自从在 Android Studio 上工作后，我似乎无法让它工作。

在我的 LocationsContentProvider 类中:

package com.new.newapp.activity;

public class LocationsContentProvider extends ContentProvider{

public static final String PROVIDER_NAME ="com.new.newapp.activtiy.locations";
public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/locations" );
private static final int LOCATIONS = 1;
private static final UriMatcher uriMatcher ;

static {
    uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
    uriMatcher.addURI(PROVIDER_NAME, "locations", LOCATIONS);
}

LocationsDB mLocationsDB;

在我的 list 中我有这个:

</activity>

    <provider
        android:name="com.new.newapp.activity.LocationsContentProvider"
        android:authorities="locations"
        android:exported="false" />

</application>

我试过 android:authorities="com.new.newapp.activity.locations" 我也试过 android:name=".LocationsContentProvider" 也搬家了

有人可以帮忙吗？

Answer 1

您的问题在于提供商名称。

<provider
        android:name="com.new.newapp.activity.LocationsContentProvider"
        android:authorities="locations"
        android:exported="false" />

public static final String PROVIDER_NAME ="com.new.newapp.activtiy.locations";

应该是

public static final String PROVIDER_NAME ="com.new.newapp.activity.LocationsContentProvider";