AndroidManifest --------
<!-- 配置内容提供者 -->
<provider
android:name=".provider.MyContentProvider"
android:authorities="com.zking.phon.PERSON"
android:exported="true" />
再写一个类 ---继承ContentProvider
public class MyContentProvider extends ContentProvider再重写几个方法 ----
public boolean onCreate() ;
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder);
public String getType(Uri uri);
public Uri insert(Uri uri, ContentValues values);
public int delete(Uri uri, String selection, String[] selectionArgs);
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs);
再其他的app调用 ContentResolver
//获取内容访问者 cr = getContentResolver(); uri = Uri.parse("content://com.zking.phon.PERSON/student"); Cursor cursor=cr.query(uri,null,null,null,null); Log.i("ccc"," sss" +cursor); Toast.makeText(this, "hhh"+cursor, Toast.LENGTH_SHORT).show(); while (cursor.moveToNext()){ int id=cursor.getInt(cursor.getColumnIndex("_id")); String name=cursor.getString(cursor.getColumnIndex("name")); int age=cursor.getInt(cursor.getColumnIndex("age")); Log.i("ccc",id+" "+name+" "+age); }