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How to resolve the technical problems of Android access

Shulou Source: shulou.com Published: 2022-06-02 16:02:00 10月17日 Update

Today I will talk to you about how to analyze Android access technical problems, many people may not know much, in order to let everyone know more, Xiaobian summarized the following content for everyone, I hope you can gain something according to this article.

In Android, there are several ways to store data, there are file methods, there are file database methods,Android comes with a SQLite database, do embedded development of this cross-platform local file database will not be unfamiliar.

In Android for data access, proposed a new way, ContentProvider way, similar to MS ContentProvider way, OLE DB, and ODBC unified data way. Let's first take a look at the use of SQLite in Android. In Android, there is the simplest way to use it, that is, openorCreateDatabase of the Context object. Let's take a look at a piece of code:

private String getName() { String name = null; Cursor cur = this.getContentResolver().query(ProviderConst.MY_TEST_URI,new String[]{"id","name"},null, null, null); if (cur == null) return null; cur.moveToFirst(); do { namename = name + cur.getString(1)+ "\n"; } while(cur.moveToNext()); return name; We can also use private String getName() { String name = null; Cursor cur = this.managedQuery(ProviderConst.MY_TEST_URI,new String[]{"id","name"},null, null, null); if (cur == null) return null; cur.moveToFirst(); do { namename = name + cur.getString(1)+ "\n"; } while(cur.moveToNext()); return name; After reading the above, do you have any further understanding of how to resolve Android access technical issues? If you still want to know more knowledge or related content, please pay attention to the industry information channel, thank you for your support.

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