java IllegalArgumentException: Unknown URL content:// CONTENT
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IllegalArgumentException: Unknown URL content:// CONTENT
提问by Phill Wiggins
IllegalArgumentException: Unknown URL content://
IllegalArgumentException：未知 URL 内容：//
^ Having a nightmare with the above. I've checked my variables and paths but can't see what the issue is? Greatly appreciate any pointers!
^ 做噩梦与上述。我检查了我的变量和路径，但看不出问题是什么？非常感谢任何指点！
Here's my trace.
这是我的踪迹。
java.lang.IllegalArgumentException: Unknown URL
content://com.purewowstudio.topmovies.data.FilmProvider/film_data
at android.content.ContentResolver.insert(ContentResolver.java:1203)
at com.purewowstudio.topmovies.data.DatabaseHelper.addFilm(DatabaseHelper.java:52)
at com.purewowstudio.topmovies.fragments.FilmList$getFilms.onPostExecute(FilmList.java:72)
at com.purewowstudio.topmovies.fragments.FilmList$getFilms.onPostExecute(FilmList.java:62)
at android.os.AsyncTask.finish(AsyncTask.java:632)
at android.os.AsyncTask.access0(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5262)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
Content Provider
内容提供商
public class FilmProvider extends ContentProvider {
public static final String TABLE_NAME = "film_data";
public static final String AUTHORITY = "com.purewowstudio.topmovies.data.FilmProvider";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/" + TABLE_NAME);
public static final int FILMS = 1;
public static final int FILMS_ID = 2;
public static final UriMatcher sURIMatcher =
new UriMatcher(UriMatcher.NO_MATCH);
static {
sURIMatcher.addURI(AUTHORITY, TABLE_NAME, FILMS);
sURIMatcher.addURI(AUTHORITY, TABLE_NAME + "/#",
FILMS_ID);
}
private DatabaseHelper mDB;
public boolean onCreate() {
mDB = new DatabaseHelper(getContext(), null, null, 1);
return false;
}
@Override
public String getType(Uri uri) {
return null;
}
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
queryBuilder.setTables(MovieDataContract.TABLE_NAME);
int uriType = sURIMatcher.match(uri);
switch (uriType) {
case FILMS_ID:
queryBuilder.appendWhere(MovieDataContract.FilmEntry._ID + "="
+ uri.getLastPathSegment());
break;
case FILMS:
break;
default:
throw new IllegalArgumentException("Unknown URI");
}
Cursor cursor = queryBuilder.query(mDB.getReadableDatabase(),
projection, selection, selectionArgs, null, null,
sortOrder);
cursor.setNotificationUri(getContext().getContentResolver(),
uri);
return cursor;
}
@Override
public Uri insert(Uri uri, ContentValues values) {
int uriType = sURIMatcher.match(uri);
SQLiteDatabase sqlDB = mDB.getWritableDatabase();
long id = 0;
switch (uriType) {
case FILMS:
id = sqlDB.insert(MovieDataContract.TABLE_NAME,
null, values);
break;
default:
throw new IllegalArgumentException("Unknown URI: "
+ uri);
}
getContext().getContentResolver().notifyChange(uri, null);
return Uri.parse(MovieDataContract.TABLE_NAME + "/" + id);
}
DatabaseHelper Class
数据库助手类
public class DatabaseHelper extends SQLiteOpenHelper {
private ContentResolver myCR;
public DatabaseHelper(Context context, String name,
SQLiteDatabase.CursorFactory factory, int version) {
super(context, MovieDataContract.DATABASE_NAME, factory, MovieDataContract.DATABASE_VERSION);
myCR = context.getContentResolver();
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(MovieDataContract.FilmEntry.SQL_CREATE_TABLE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL(MovieDataContract.FilmEntry.DELETE_TABLE);
onCreate(db);
}
public void addFilm(Film film){
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(MovieDataContract.FilmEntry.COLUMN_FILM_TITLE, film.getTitle());
values.put(MovieDataContract.FilmEntry.COLUMN_FILM_RATING, film.getRating());
values.put(MovieDataContract.FilmEntry.COLUMN_FILM_RUNTIME, film.getRuntime());
values.put(MovieDataContract.FilmEntry.COLUMN_FILM_CRITICS, film.getCritics());
values.put(MovieDataContract.FilmEntry.COLUMN_FILM_AUDIENCE, film.getAudience());
values.put(MovieDataContract.FilmEntry.COLUMN_FILM_SYNOPSIS, film.getSynopsis());
values.put(MovieDataContract.FilmEntry.COLUMN_FILM_PROFILE, film.getProfile());
myCR.insert(FilmProvider.CONTENT_URI, values);
db.insert(MovieDataContract.TABLE_NAME,
null,
values);
db.close();
}
Manifest
显现
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/TopMoviesTheme" >
<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>
<activity
android:name=".DetailFragment"
android:label="@string/title_activity_detail_fragment"
android:parentActivityName=".MainActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.purewowstudio.topmovies.MainActivity" />
<provider
android:name=".data.filmProvider"
android:authorities="com.purewowstudio.topmovies.data.filmProvider"
android:exported="true">
</provider>
</activity>
</application>
</manifest>
回答by CommonsWare
First, move <provider>to be a child of <application>, not <activity>.
首先，<provider>要成为 的孩子<application>，而不是<activity>。
Second, change android:exported="true"to android:exported="false", until such time as you secure your ContentProvider. As it stands, once you fix the <provider>element location as noted above, any app can read and write anything in your provider, which is unlikely to be what the user wants.
其次，更改android:exported="true"为android:exported="false"，直到您保护您的ContentProvider. 就目前而言，一旦您<provider>如上所述修复了元素位置，任何应用程序都可以在您的提供程序中读取和写入任何内容，这不太可能是用户想要的。
回答by Steve
I have added package name in authorities.that's why I got this issue.I have to add Provider namein authorities.
我在authorities.that。这就是为什么我得到这个issue.I必须添加附加软件包名称Provider name中authorities。
<provider
android:name="LoginContentProvider"
android:authorities="com.provider.name.team"
android:exported="false" />
