例外 – 为包裹写例外
这是一个将简单文本数据插入sqlite数据库的小任务。 我已经使用了SQLiteOpenHelper类并使用了给定的代码。 我在这里找到了一些类似的问题，但不完全相同。 请帮帮我。 这是例外 –
11-14 21:59:17.786 5746-5763/? E/DatabaseUtils: Writing exception to parcel java.lang.SecurityException: Neither user 10169 nor current process has android.permission.READ_PROFILE. at android.app.ContextImpl.enforce(ContextImpl.java:1921) at android.app.ContextImpl.enforceCallingOrSelfPermission(ContextImpl.java:1950) at android.content.ContextWrapper.enforceCallingOrSelfPermission(ContextWrapper.java:600) at com.android.providers.contacts.ProfileProvider.enforceReadPermission(ProfileProvider.java:54) at com.android.providers.contacts.ProfileProvider.query(ProfileProvider.java:84) at com.android.providers.contacts.ContactsProvider2.query(ContactsProvider2.java:5066) at android.content.ContentProvider$Transport.query(ContentProvider.java:214) at android.content.ContentProviderNative.onTransact(ContentProviderNative.java:112) at android.os.Binder.execTransact(Binder.java:446) 我在AndroidManifest.XML文件中使用了以下权限：
这是我的DBHelper课程 –
public class DBHelper extends SQLiteOpenHelper { public static final String DATABASE_NAME = "CANDIDATES"; public static final String TABLE_NAME = "CANDIDATES_TABLE"; public static final String NAME = "NAME"; public static final String AGE = "AGE"; public static final String QUAL = "QUALIFICATION"; public static final String SALARY = "SALARY"; public static final String ADD = "ADDRESS"; public static final String DES = "DESCRIPTION"; Context context; public DBHelper(Context context) { super(context, DATABASE_NAME, null, 1); this.context=context; } @Override public void onCreate(SQLiteDatabase db) { db.execSQL("create table "+ TABLE_NAME +" ("+NAME+" TEXT,"+AGE+" INTEGER,"+QUAL+" TEXT,"+SALARY+" INTEGER,"+ADD+" TEXT,"+DES+" TEXT )"); } public boolean insertData(String name,int age,String qual,int salary, String add, String des){ SQLiteDatabase db=this.getWritableDatabase(); ContentValues contentValues=new ContentValues(); contentValues.put(NAME,name); contentValues.put(AGE,age); contentValues.put(QUAL,qual); contentValues.put(SALARY,salary); contentValues.put(ADD,add); contentValues.put(DES,des); long result=db.insert(TABLE_NAME,null,contentValues); Log.v("check",name+age+""+qual+salary+""+add+des); if(result==-1){ return false; } else return true; } public Cursor getData(){ SQLiteDatabase db=this.getWritableDatabase(); Cursor cursor=db.rawQuery("Select * from"+TABLE_NAME,null); return cursor; } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { db.execSQL("DROP TABLE IF EXISTS "+TABLE_NAME); onCreate(db); }
}
您需要询问运行时权限。 对于较新的版本，添加清单是不够的。
if (ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) { // Should we show an explanation? if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity, Manifest.permission.READ_CONTACTS)) { // Show an explanation to the user *asynchronously* -- don't block // this thread waiting for the user's response! After the user // sees the explanation, try again to request the permission. } else { // No explanation needed, we can request the permission. ActivityCompat.requestPermissions(thisActivity, new String[]{Manifest.permission.READ_CONTACTS}, MY_PERMISSIONS_REQUEST_READ_CONTACTS); // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an // app-defined int constant. The callback method gets the // result of the request. } }
您需要将此行添加到清单中：
