java - MenuItem is not showing up -
i can't menuitem working ,i have created other apps before reason not show :
mainactivity.java
package ie.example.artur.adminapp; import android.content.intent; import android.os.asynctask; import android.os.bundle; import android.support.design.widget.floatingactionbutton; import android.support.design.widget.snackbar; import android.support.v7.app.appcompatactivity; import android.support.v7.widget.toolbar; import android.view.view; import android.view.menu; import android.view.menuitem; import android.view.viewconfiguration; import android.widget.button; import android.widget.edittext; import android.widget.textview; import java.lang.reflect.field; import java.sql.connection; import java.sql.drivermanager; import java.sql.statement; public class mainactivity extends appcompatactivity { edittext edittextname,edittextemail,edittextpassword; textview textview; private static final string db_url = "jdbc:mysql://10.3.2.51/socialmedia_website"; private static final string user = "zzz"; private static final string pass = "zzz"; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_register); toolbar toolbar = (toolbar) findviewbyid(r.id.toolbar); setsupportactionbar(toolbar); textview = (textview) findviewbyid(r.id.textview); edittextname = (edittext) findviewbyid(r.id.edittextname); edittextemail = (edittext) findviewbyid(r.id.edittextemail); edittextpassword = (edittext) findviewbyid(r.id.edittextpassword); //// try { //// viewconfiguration config = viewconfiguration.get(this); //// field menukeyfield = viewconfiguration.class.getdeclaredfield("shaspermanentmenukey"); //// if (menukeyfield != null) { //// menukeyfield.setaccessible(true); //// menukeyfield.setboolean(config, false); //// } // } catch (exception ignored) { // } floatingactionbutton fab = (floatingactionbutton) findviewbyid(r.id.fab); fab.setonclicklistener(new view.onclicklistener() { @override public void onclick(view view) { snackbar.make(view, "replace own action", snackbar.length_long) .setaction("action", null).show(); } }); } public void btnconn(view view) { send objsend = new send(); objsend.execute(""); } private class send extends asynctask<string, string, string> { string msg = ""; string name = edittextname.gettext().tostring(); string email = edittextemail.gettext().tostring(); string password = edittextpassword.gettext().tostring(); @override protected void onpreexecute() { textview.settext("please wait inserting data"); } @override protected string doinbackground(string... strings) { try { class.forname("com.mysql.jdbc.driver"); connection conn = drivermanager.getconnection(db_url, user, pass); if (conn == null) { msg = "connection goes wrong"; } else { string query = "insert users (name,email,password) values('" + name+"','"+email+"','"+password+"')"; statement stmt = conn.createstatement(); stmt.executeupdate(query); msg = "inserting successful!!"; } conn.close(); } catch( exception e ) { msg = "connection goes wrong"; e.printstacktrace(); } return msg; } @override protected void onpostexecute(string msg) {textview.settext(msg);} } @override public boolean onoptionsitemselected(menuitem item) { // handle action bar item clicks here. action bar // automatically handle clicks on home/up button, long // specify parent activity in androidmanifest.xml. { switch (item.getitemid()) { case r.id.action_settings : startactivity (new intent(this, showusers.class)); break; } return super.onoptionsitemselected(item); }} } menu_main.xml:
<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" tools:context="ie.example.artur.adminapp.mainactivity"> <item android:id="@+id/action_settings" android:title="@string/action_settings" android:orderincategory="100" app:showasaction="ifroom|withtext"/> </menu> androidmanifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="ie.example.artur.adminapp"> <uses-permission android:name="android.permission.internet"/> <application android:allowbackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsrtl="true" android:theme="@style/theme.appcompat.daynight.noactionbar"> <activity android:name=".mainactivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.main" /> <category android:name="android.intent.category.launcher" /> </intent-filter> </activity> </application> </manifest> i have tried following links fix issue non of them helped :
how force use of overflow menu on devices menu button
add in activity..
@override public boolean oncreateoptionsmenu(menu menu) { getmenuinflater().inflate(r.menu.menu_main, menu); return true; } 
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