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我创建了扩展 contentprovider 的类。 我已经重写了 6 个函数，
@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 insert() 来添加数据？
i had created class that extends contentprovider.
I had override the 6 functions
@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?
}
my question is how to call the insert() to add data?
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通过 getContentResolver() 获取 ContentResolver 实例 插入方法。
更新 这是最好的教程
Obtain ContentResolver instance via getContentResolver() insert method.
UPDATE That's the best tutorial