Solution 1 : This does the trick: cursor.moveToFirst(); cursor.move(-1); Problem : I have a Cursor returned by dbHelper.getReadableDatabase().query(). I can loop through the cursor using: while(cursor.moveToNext()) {} Then I would like to reset the cursor and loop again. I tried: cursor.moveToFirst() // this return true while(cursor.moveToNext()) {} But this never goes into the while loop….
Category: Android
[ANSWERED] android – how to draw brushes or shape using path when moving finger fast in andorid canvas (generate missing point when user move finger fast)
Solution 1 : Ok At last i find solution. this is how im getting all the points , note that this a theorem called Bresenham’s line algorithm and its only works with integer, this is how im getting all the point , move finger fast or slow point will always be same 😀 //x0,y0 ,…
[ANSWERED] android – Recycler View initial lag while scrolling
Solution 1 : Try creating a release build of the app. Debug builds often display minor amounts of animation lag. Problem : So I have a pretty basic recycler view where Items are in cardViews. There are no pictures loading , it’s just data represented on cardViews. When data is loaded from server , while…
[ANSWERED] android – How to perform delete on a CURRENT_TIMESTAMP column?
Solution 1 : Save the table as timestamp(Long Value : 1231413123) It will be easier for you to query the relevant values ​​during the deletion process. Sample Table; CREATE TABLE MyTable( ID INTEGER PRIMARY KEY, Foo TEXT, Bar TEXT, Timestamp DATETIME DEFAULT CURRENT_TIMESTAMP ); Solution 2 : Fixed the issue! QUERY (ERROR): db.execSQL(“DELETE FROM “…
[ANSWERED] javascript – React Native Webview: How to enable ‘swipe to navigate’ gestures for Android?
Solution 1 : const webView = useRef(null) const [canGoBack, setCanGoBack] = useState(false) useEffect(() => { if (Platform.OS === ‘android’) { console.log(webView) BackHandler.addEventListener(‘hardwareBackPress’, HandleBackPressed) return () => { BackHandler.removeEventListener(‘hardwareBackPress’, HandleBackPressed) } } }, []) // INITIALIZE ONLY ONCE const HandleBackPressed = () => { if (webView.current) { webView.current.goBack() return true } return false } return (…
[ANSWERED] android – What Stops Google From Modifying Our APKs That It Signs Via the App Signing Service?
Solution 1 : Google doesn’t just have the capability to modify .apk files uploaded to it’s Google Play signing program- they already are. Granted, this is at the moment a minor change and certainly a non-malicious one; but it remains an actual change of your .apk. They add <meta-data android_name=”com.android.vending.derived.apk.id” android_value=”1″ /> to the AndroidManifest.xml…
[ANSWERED] android – Should you mention runtime permission in Manifest?
Solution 1 : What you’re probably experiencing is that the WRITE_EXTERNAL_STORAGE permission is all but deprecated starting with Android 10. This is part of Google’s Scoped Storage enforcement: https://developer.android.com/preview/privacy/storage You’re supposed to declare runtime permissions in AndroidManifest. Try the same thing with another dangerous permission and see if it acts the same way. Solution 2…
[ANSWERED] bluetooth lowenergy – Android BLE Advertisement not able to exceed 20 bytes
Solution 1 : The advertising packet is fixed at 31 octets and will contain a number of AD structures. Each AD structure shall have a Length field of one octet, which contains the Length value, and a Data field of Length octets. For service data that means about 20 octets of actual data. Some common…
[ANSWERED] firebase – No permission to write to file:///storage/9016-4EF8: Neither user 10390 nor current process has android.permission.WRITE_MEDIA_STORAGE
Solution 1 : After some experimenting it was clear that DownloadManager will not download to root of external storage or removable micro sd card. Not even to apps private directory on micro sd card. But to Download folder on external root or sd card root is ok. Change /storage/9016-4EF8/Photo Memory To /storage/9016-4EF8/Download/PhotoMemory and you will…
[ANSWERED] java – How to add volley in android
Solution 1 : It’s not volley its Gradle that is downloading the dependency, the Gradle download **PackageName** the possible reason could be: 1- Availability of read/write Permissions if you are using Linux Distro if its the problem then use sudo chmod 7777 your_file_name or you can use sudo chmod 7777 * to change the permission…