CODEWITHSUNDEEP
androidintentservice
Vipme
Vipme

Reputation: 3

How to update recyclerview using Intentservice without data duplicate

I have a recyclerview getting data with http request using Intentservice. I have a button to update my recylcerview adapter. When i push this button data updates and it's seems alright. But when i push this button and change screen orientation, number of rows in recylcler view doubles.

I have this in my manefest:

        <activity android:name=".MainActivity"
        android:configChanges="orientation|screenSize">

So seems like android shouldn't create a new activity with changing orientation and he doesn't when i just change orientation without pushing update button. Anyone got some ideas about that? Thanks.

Upvotes: 0

Views: 106

Answers (3)

iamgopal
iamgopal

Reputation: 644

What happen when orientation changed

Life Cycle of orientation

onPause();
onSaveInstanceState();
onStop();
onDestroy();

onCreate();
onStart();
onResume();

Use this

android:configChanges="keyboardHidden|orientation|screenSize"

Caution: Beginning with Android 3.2 (API level 13), the "screen size" also changes when the device switches between portrait and landscape orientation. Thus, if you want to prevent runtime restarts due to orientation change when developing for API level 13 or higher (as declared by the minSdkVersion and targetSdkVersion attributes), you must include the "screenSize" value in addition to the "orientation" value. That is, you must decalare android:configChanges="orientation|screenSize". However, if your application targets API level 12 or lower, then your activity always handles this configuration change itself (this configuration change does not restart your activity, even when running on an Android 3.2 or higher device).

From http://developer.android.com/guide/topics/resources/runtime-changes.html

Upvotes: 0

Lalit Jadav
Lalit Jadav

Reputation: 1427

Whenever new data found, check old data.

If new data not available in list then insert it. If new data available in list then, check if data is same : nothing to do if data differs : update old data with new data and notify recyclerview itemupdated

You need to specify which data need to update and which not. Apply your logic to compare.

Upvotes: 0

MaYur MahAjan
MaYur MahAjan

Reputation: 143

Just clear the list before adding the data for first time. so that it will also help you while coming back on the same page.

Upvotes: 0

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