The main activity is the one which starts before the other ones.
Questions tagged [main-activity]
201 questions
1
vote
0 answers
Xamarin Forms - how to get app to resume to same view onResume
Since I've implemented a splash activity in my XF app I cannot get the view to persist an app minimize/resume. It worked fine with just one activity. Currently, as per Microsoft's documentation, I have them as mainlauncher- true, nohistory - true in…

Alex Danicel
- 11
- 1
1
vote
2 answers
activity that plays video and exit app when video is finished
For the last 18 Months I have been building simple apps in android studio and I am really stuck trying to work this out so any help would be great
So far my app works great, open the app on the first activity and press the play button and the 2nd…

J.Edwardes
- 11
- 3
1
vote
1 answer
How do i make the navigation bar hide after the keyboard is closed?
I Am trying to make a full screen Webview app and when ever a user searches something on a web page the keyboard pops up(obviously) and the navbar and the status bar show up but when the user closes the keyboard, the navigation bar and the status…

ADITYA G
- 13
- 6
1
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0 answers
setcontentview(r.layout.activity_main) crash
My application is closed(crash) and shows on Android monitor error it :
activities.MainActivity.onCreate(MainActivity.java:77)
what can i do?!
this is my logcat:
03-14 10:21:04.255 5003-5003/com.panaceasoft.citiesdirectorySHZ E/AndroidRuntime: FATAL…

reza
- 11
- 2
1
vote
0 answers
Update textview in android custom notification
I have a custom local notification implementing remoteview comprising of three buttons and a textview. Button click in notification changes volume of ringer but I want to increment a variable count each time the up button click or decrement then…

Zia UsafXai
- 73
- 1
- 10
1
vote
2 answers
Error: failed linking file resources
Every time I am trying to turn on my app it shows up an error:
Error:error: '*/*' is incompatible with attribute android:type (attr) enum [linear=0, radial=1, sweep=2].
Error:'*/*' is incompatible with attribute android:type (attr) enum [linear=0,…

Johanna
- 41
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1
vote
1 answer
Shared Preferences causes app to crash. Android Studio
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener, page1_user_notes.communicate{
private SectionsPagerAdapter mSectionsPagerAdapter;
private ViewPager mViewPager;
…

pewpew
- 700
- 2
- 9
- 32
1
vote
2 answers
java - Android Studio - Unable to instantiate activity
Guys I can not find a way to run my app. Please help.
Here is the error:
enter image description here
Here is my MainActivity file:
package com.example.aman.text_to_speech;
import android.support.v7.app.AppCompatActivity;
import…
user7602489
1
vote
2 answers
Android Studio can't see TextView ID
I have a textview, the xml file is

GLHF
- 3,835
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1
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0 answers
Android Studio - HTML Buttons in MainActivity.java
So beforehand I made a project with Phonegap. In the Index.html file of the project I have this Button:
Now i've imported this project into Android Studio to get it working with Admob…

HoardyFlame
- 11
- 2
1
vote
1 answer
Xamarin - how to change image source dynamically?
I'm following this tutorial and work fine.
https://developer.xamarin.com/recipes/android/controls/imageview/display_an_image
But in my case, I have 200 pictures. The user will write word in EditText, after click in button, show picture…

Diego Venâncio
- 5,698
- 2
- 49
- 68
1
vote
2 answers
How to find an object in the Mainactivity from another class
How can I find an object (for example Imageview) in the Mainactivity from another class that this class have extends?
my Mainactivity :
public class MainActivity extends Activity implements OnClickListener {
@Override
protected void onCreate(Bundle…

joojoo
- 11
- 2
1
vote
2 answers
How to build a GridViewAdapter correctly?
I tried to create a GridView with 6 Buttons and I wanted to display 6 different names on the Buttons.
Here is my activity_main.xml with the GridView:

Aaron Waller
- 175
- 4
- 21
1
vote
2 answers
Default Activity not found Error while Launching activity
Error
enter image description here
03/02 22:01:22: Launching app
No local changes, not deploying APK
Could not identify launch activity: Default Activity not found
Error while Launching activity
This is my AndroidManifist.xml

Rehan khan
- 59
- 10
1
vote
2 answers
PutExtra Value not being passed to mainactivity from push notification using xamarin forms and android
Im currently aiming to open the app to a particiualr page after the click of a push notification that successfully recieves. Il be sending an id once i get the basics working. For some reason the id is not being passed back to the mainactivity after…

Costas Aletrari
- 387
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