I have received forced closed error message on running the sample code of Google API.Is update a project is a solution to this type of project? If so then how to update project on window.The method given here don't work on my case.
Here is code
Filename:HelloGoogleMaps.java
package com.hellogooglemaps.practices;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import android.os.Bundle;
public class HelloGoogleMaps extends MapActivity {
/** Called when the activity is first created. */
#Override
protected boolean isRouteDisplayed(){
return false;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MapView mapView = (MapView)findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
}
#Override
protected boolean isLocationDisplayed(){
return true;
}
}
HelloGoogleMaps Manifest
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:label="#string/app_name"
android:name=".HelloGoogleMapsActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".HelloGoogleMaps" android:label="#string/app_name"
android:theme="#android:style/Theme.NoTitleBar" />
<uses-library android:name="com.google.android.maps"/>
</application>
main.xml
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="0_hYeORLgQUROOOr_RXN2TWG2u2pCDoBYfLCV_w"
/>
As you had mentioned in your code, You have only one Activity called HelloGoogleMaps and in your AndroidManifest you have declared two activities!! your HelloGoogleMapsActivity is useless. You are getting the error because you set HelloGoogleMapsActivity as the Launcher activity and this activity don't even exist!!
Solution:
change your AndroidManifest.xml like that and you will get your app work if you had managed to get the apikey for your map correctly:
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:label="#string/app_name"
android:theme="#android:style/Theme.NoTitleBar"
android:name=".HelloGoogleMaps" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<uses-library android:name="com.google.android.maps"/>
</application>
After facing Force close Error many time what I have found is that these type of error is so common and come due to the undefined behavioral.Like when we declare Button and without assigning the view on it we use it on another function. It is also appear due to not handling the exception correctly. or Due to unavailable of resource your are trying to access in emulator like contact number. Best method to solve these type of problem is using log and printing some message on place where we feel confusing and using logcat.
In above case I had received force close error due to undefined behavior in HelloGoogleMapsActivity class
Related
I am recently facing a problem while creating new android application in both eclipse as well as android studio.
I am using same SDK in both eclipse and android studio.
When I create a new application and i simply run it. The launcher activity was getting loaded twice.
Means, I am getting MainActivity loading twice one on top of another.
OnCreate() method of my MainActivity also got invoked twice.
The code goes like follows
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.sample"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="21"
android:targetSdkVersion="22" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<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>
MainActivity.java
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
System.out.println("OnCreate Invoked");
}
}
Output
OnCreate Invoked
OnCreate Invoked
Can you please help me in resolving this issue.
Thanks in advance.
It seems you are getting multiple instance of your first activity.
Use this in manifest of 1st activity:
android:launchMode="singleTop"
If I set orientation programatically in onCreate - I can reproduce this issue.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
If needed, set activity orientation in the manifest file like this.
<activity
android:name=".MainActivity"
android:screenOrientation="landscape">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
As i am new to android programming, I don't know how to call a certain class and/or certain activity first.
For example i have two classes viz. 1) Login.java 2) Create.java and two xml files associated with them are activity_main.xml and create_new.xml respectively.
So how can i make Login.java run first with activity_main.xml as screen?
in login java use this
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);}
in create java us this
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.create_new);
in androidmanifest
<activity
android:name=".Login"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
and another activities
<activity android:name=".MainActivity" ></activity>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.your.package"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="19" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.your.package.activity.Login"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.example.your.package.activity.Create"
android:label="#string/app_name" >
</activity>
</application>
</manifest>
In this case, the intent-filter of LOGIN activity specifies that the intent with action of MAIN and category of LAUNCHER will be caught by it, aka it is where the application starts.
Afterwards,
public class Login extends Activity
{
//honestly I'd name this class LoginActivity and same in the XML
#Override
public void onCreate(Bundle saveInstanceState)
{
super.onCreate(saveInstanceState);
setContentView(R.layout.activity_main);
}
....
}
Also look at this example to learn how to use Fragments:
NullPointerException accessing views in onCreate()
from the intent filters you decalre in the android manifest file of your project;see the image
You declare an intent filter in the activity tag something like shown in the image for making it the first activity of your application.and if there are other activities in your app having intent filters than you have to just change the capital letter MAIN to DEFAULT in the intent filter tag
You will find AndroidManifest file like in the following image in your project
i am developing an android app using phonegap. i have multiple pages in the app and a single activity. whenever i change the orientation of the device, no matter which page i am on, the app loads the first page which is shown when the app is launched. i assumed it was because i had not overriden the onResume() method in the activity, but even that failed to solve the problem.
EDIT: This issue does not arise if the app is paused and the resumed.
My activity:
public class MainScreen extends DroidGap {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.loadUrl("file:///android_asset/www/landing.html");
}
#Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
}
}
EDIT: Added Manifest file
My Manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.me.code"
android:versionCode="5"
android:versionName="1.4" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission android:name="com.miniorange.authenticator.permission.C2D_MESSAGE" android:protectionLevel="signature" />
<uses-permission android:name="com.miniorange.authenticator.permission.C2D_MESSAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.miniorange.authenticator.MainActivity"
android:label="#string/app_name" >
</activity>
<activity android:name="com.miniorange.authenticator.MainScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.plugin.gcm.PushHandlerActivity"/>
<receiver android:name="com.plugin.gcm.CordovaGCMBroadcastReceiver" android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.me.code" />
</intent-filter>
</receiver>
<service android:name="com.plugin.gcm.GCMIntentService" />
</application>
</manifest>
what may be the solution to this problem?
sorry ... ( answering it late :D )
I had this problem with my app :
When I change the orientation, activity reloads ...
And I found this solution :
add this attribute to your <activity> tags :
android:configChanges="orientation"
suggestion ... use this insted (better) :
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale"
==========================================
information about solution :
what is the reason .. (?)
It'll say to application that you want to handle this changes (orientation, keyboardHidden, keyboard, screenSize, locale, etc.) yourself.
Thanks in advance for your efforts.
I have an Application that revolves around a ListActivity extended class. Before the app starts, I want to check whether the user is registered, and if not tell him to and get some info from him. So, I tried to call StartActivity in the OnCreate() method. When that loaded, I got a big black screen.
I thought that it may be related to being run in the OnCreate so I let the Activity start as usual, and I tried to run it in an OnClick event, and I got the same result.
In both cases, if I press escape, that Window goes away and the main app window comes back.
Here are the lines from where I call the new Activity
Intent emailIntent = new Intent(this, EmailAddressGetter.class);
this.startActivity(emailIntent);
Here is the code of the class
/**
*
*/
package com.kosherapp;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Toast;
/**
* #author Josh
*
*/
public class EmailAddressGetter extends Activity {
public void OnCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.emailinput);
}
}
Here is the emailinput xml contents
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="#ffffff"
android:textColor="#000000"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:text="hello"
>
</TextView>
And, here is the manifest contents
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.kosherapp"
android:versionCode="1"
android:versionName="1.0"
>
<uses-permission
android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission
android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission
android:name="android.permission.INTERNET" />
<uses-permission
android:name="android.permission.CALL_PHONE" />
<application
android:icon="#drawable/icon"
android:label="#string/app_name"
>
<activity
android:name=".KosherApp"
android:label="#string/app_name"
android:theme="#android:style/Theme.NoTitleBar"
>
<intent-filter>
<action
android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".EmailAddressGetter"
android:label="email Address Getter"
>
</activity>
<activity
android:name=".GoogleMaps"
android:label="Google Maps"
>
</activity>
<uses-library
android:name="com.google.android.maps" />
</application>
</manifest>
Let me know if there's any other info you may need. Oh, I'm running this with the Google API 2.1-update
Thanks
Change OnCreate to onCreate in EmailAddressGetter.
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.emailinput);
}
You need to use EditText instead. TextView is for static text which is why nothing is displaying. You should also include the EditText in another layout like Linear or Relative so it looks cleaner.
You are using an intent to call EmailAddressGetter but it doesn't have an intent filter in the manifest. Throw in something like Log.e("EmailAddressGetter", "It worked") in your onCreate and use ddms to see if it is actually opening that activity.
Also, in the updated code in your comment to Robby Pond, remove the xmlns line from EditText
I'm trying to create an app that will change a setting when the user holds the search button. It seems that the combination of the WRITE_SETTINGS permission and the fact that the activity is launched from another application using the long press makes the parent task crash. For example, if I'm looking at Google Maps and hold the search button, the SearchButtonPopup does not appear and Google Maps crashes.
I tried taking the Theme.Dialog out, but it didn't make any difference. Removing the permission makes it robust again, no crashes, but I need the permission! Any fixes or workarounds?
These are my manifest and java files:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.stathissideris.searchbuttonpopup" android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="3" />
<uses-permission android:name="android.permission.WRITE_SETTINGS" />
<application android:icon="#drawable/logo" android:label="#string/app_name"
android:debuggable="true" android:permission="android.permission.WRITE_SETTINGS">
<activity android:name=".SearchButton" android:theme="#android:style/Theme.Dialog">
<intent-filter>
<action android:name="android.intent.action.SEARCH_LONG_PRESS" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
SearchButton.java
package org.stathissideris.searchbuttonpopup;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
public class SearchButton extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("SearchButtonPopup", "search held");
}
}