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Question

我已经创建了扩展contentprovider的类。 我不得不重写6个功能

@override 
public Uri insert(Uri uri, ContentValues initialvalues) { 

    ContentValues values; 
    if(initialvalues != null){ 
     values = new ContentValues(initialvalues); 
    }else{ 
     values = new ContentValues(); 
    } 
    SQLiteDatabase mDb = mDbHelper.getWritableDatabase(); 
    long rowId = mDb.insert(DatabaseHelper.TABLE_PROGRAM, null, values); 
    if(rowId > 0){ 
     Uri programUri = ContentUris.withAppendedId(null, rowId); 
     getContext().getContentResolver().notifyChange(programUri, null); 
     return programUri; 
    } 
    throw new IllegalArgumentException("Failed to insert row into " + uri); 
} 

private void createdata(){ 
    String a = "a", b = "b", c = "c", d= "d"; 
    //how i going to call the content provider to let me to add in data? 
} 

我的问题是如何调用插入（）添加数据？

Answer 1

通过getContentResolver（）insert方法获取ContentResolver实例。

UPDATEThat's the best tutorial