{"id":8372,"date":"2022-09-13T06:21:24","date_gmt":"2022-09-13T00:51:24","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-my-application-wont-start-up\/"},"modified":"2022-09-13T06:21:24","modified_gmt":"2022-09-13T00:51:24","slug":"solved-my-application-wont-start-up","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-my-application-wont-start-up\/","title":{"rendered":"[Solved] My Application won&#8217;t start up?"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-29354075\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"29354075\" data-parentid=\"29353918\" data-score=\"1\" 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=\"s-prose js-post-body\" itemprop=\"text\">\n<p>The fact that you have created a constructor for the <code>Something<\/code> class<\/p>\n<pre><code>public Something(Activity a) {\n\n       click();\n\n}\n<\/code><\/pre>\n<p>instead of using <code>onCreate()<\/code> is probably the source of the error.<\/p>\n<p><code>Something<\/code> is derived from <code>Activity<\/code>, in which you <em>have<\/em> to override <code>onCreate()<\/code> at the very least, and set the <code>View<\/code> of your <code>Activity<\/code> in it. You haven&#8217;t done that, and instead you have created a constructor for <code>Something<\/code> which is also not allowed.<\/p>\n<p>The solution to your problem is to replace the constructor with <code>onCreate()<\/code> and set the <code>View<\/code> of that <code>Activity<\/code> using <code>setContentView()<\/code>. Also, you cannot create an <code>Activity<\/code> object using<\/p>\n<pre><code>new Something(this);\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">3<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved My Application won&#8217;t start up? <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] The fact that you have created a constructor for the Something class public Something(Activity a) { click(); } instead of using onCreate() is probably the source of the error. Something is derived from Activity, in which you have to override onCreate() at the very least, and set the View of your Activity in it. &#8230; <a title=\"[Solved] My Application won&#8217;t start up?\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-my-application-wont-start-up\/\" aria-label=\"More on [Solved] My Application won&#8217;t start up?\">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":[452,1211,2374,528,323],"class_list":["post-8372","post","type-post","status-publish","format-standard","hentry","category-solved","tag-android","tag-android-activity","tag-android-lifecycle","tag-constructor","tag-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] My Application won&#039;t start up? - 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-my-application-wont-start-up\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] My Application won&#039;t start up? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] The fact that you have created a constructor for the Something class public Something(Activity a) { click(); } instead of using onCreate() is probably the source of the error. 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