Created app using GridView with ViewPager error: lambda expressions are not supported in -source 1.7(use -source 8 or higher

Question

I have created android app using GridView with ViewPager for images like gallery or small book which have 14 images

in my main activity showing error :- error: lambda expressions are not supported in -source 1.7 (use -source 8 or higher to enable lambda expressions)

check screenshot:- http://prntscr.com/jw6pdd

Please review my code and guide me how can I solve this problem. Here is my code:-

private void setGridViewItemClickListener(){
        gridView.setOnItemClickListener((parent, view, position, id) -> {
            Bundle bundle = new Bundle();
            bundle.putInt("position", position);
            bundle.putStringArrayList("imageURLs", listImageURLs);
            Intent intent = new Intent(this, ImageActivity.class);
            intent.putExtras(bundle);
            startActivity(intent);
        });
    }

it clearly says that lambdas are not supported in Java 7. At least google the error before you post a 100% duplicate question. — Vladyslav Matviienko, Jun 18 '18 at 08:10

Sagar · Accepted Answer · 2018-06-18T08:15:51.320

0

Lamda expressions are supported from Java 8. Add following in your build.gradle

android {
  ...

  compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
  }
}

edited Jun 18 '18 at 08:15

answered Jun 18 '18 at 08:09

Sagar

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you mean add independencies from buildgradle? – Ayan Jun 18 '18 at 08:12
@Ayan modify your module-level `build.gradle` – Sagar Jun 18 '18 at 08:17

Created app using GridView with ViewPager error: lambda expressions are not supported in -source 1.7(use -source 8 or higher

1 Answers1