{"id":19509,"date":"2022-11-06T22:44:37","date_gmt":"2022-11-06T17:14:37","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-retriving-data-from-firebase-in-arraylist-in-android-closed\/"},"modified":"2022-11-06T22:44:37","modified_gmt":"2022-11-06T17:14:37","slug":"solved-retriving-data-from-firebase-in-arraylist-in-android-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-retriving-data-from-firebase-in-arraylist-in-android-closed\/","title":{"rendered":"[Solved] Retriving data from Firebase in Arraylist in Android [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-51763572\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"51763572\" data-parentid=\"51762731\" data-score=\"0\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"js-endorsements\" data-for-answer=\"51763572\">\n<\/div>\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>Assuming you have a model class for your electrician object named <code>Electrician<\/code>, to get a list of electrician objects, please use the following code:<\/p>\n<pre><code>DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference();\nDatabaseReference electricianRef = rootRef.child(\"Employee\").child(\"Electrician\");\nValueEventListener valueEventListener = new ValueEventListener() {\n    @Override\n    public void onDataChange(DataSnapshot dataSnapshot) {\n        List&lt;Electrician&gt; list = new ArrayList&lt;&gt;();\n        for(DataSnapshot ds : dataSnapshot.getChildren()) {\n            Electrician electrician = ds.getValue(Electrician.class);\n            list.add(electrician);\n            Log.d(\"TAG\", electrician.getLname());\n        }\n    }\n\n    @Override\n    public void onCancelled(@NonNull DatabaseError databaseError) {}\n};\nelectricianRef.addListenerForSingleValueEvent(valueEventListener);\n<\/code><\/pre>\n<p>You can achieve this even simpler, using the String class and getting a list of electrician names for example:<\/p>\n<pre><code>DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference();\nDatabaseReference electricianRef = rootRef.child(\"Employee\").child(\"Electrician\");\nValueEventListener valueEventListener = new ValueEventListener() {\n    @Override\n    public void onDataChange(DataSnapshot dataSnapshot) {\n        List&lt;String&gt; list = new ArrayList&lt;&gt;();\n        for(DataSnapshot ds : dataSnapshot.getChildren()) {\n            String lName = ds.child(\"Lname\").getValue(String.class);\n            list.add(lName);\n            Log.d(\"TAG\", lName);\n        }\n    }\n\n    @Override\n    public void onCancelled(@NonNull DatabaseError databaseError) {}\n};\nelectricianRef.addListenerForSingleValueEvent(valueEventListener);\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">6<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Retriving data from Firebase in Arraylist in Android [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Assuming you have a model class for your electrician object named Electrician, to get a list of electrician objects, please use the following code: DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference(); DatabaseReference electricianRef = rootRef.child(&#8220;Employee&#8221;).child(&#8220;Electrician&#8221;); ValueEventListener valueEventListener = new ValueEventListener() { @Override public void onDataChange(DataSnapshot dataSnapshot) { List&lt;Electrician&gt; list = new ArrayList&lt;&gt;(); for(DataSnapshot ds : dataSnapshot.getChildren()) { &#8230; <a title=\"[Solved] Retriving data from Firebase in Arraylist in Android [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-retriving-data-from-firebase-in-arraylist-in-android-closed\/\" aria-label=\"More on [Solved] Retriving data from Firebase in Arraylist in Android [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[452,980,1114,323],"class_list":["post-19509","post","type-post","status-publish","format-standard","hentry","category-solved","tag-android","tag-firebase","tag-firebase-realtime-database","tag-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Retriving data from Firebase in Arraylist in Android [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-retriving-data-from-firebase-in-arraylist-in-android-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Retriving data from Firebase in Arraylist in Android [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Assuming you have a model class for your electrician object named Electrician, to get a list of electrician objects, please use the following code: DatabaseReference rootRef = FirebaseDatabase.getInstance().getReference(); DatabaseReference electricianRef = rootRef.child(&quot;Employee&quot;).child(&quot;Electrician&quot;); ValueEventListener valueEventListener = new ValueEventListener() { @Override public void onDataChange(DataSnapshot dataSnapshot) { List&lt;Electrician&gt; list = new ArrayList&lt;&gt;(); for(DataSnapshot ds : dataSnapshot.getChildren()) { ... 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