I know that there is a lot of questions related to this issue, but none of them solve my problem. I made a quiz app with 50 questions fragments. In the final question (Question 50 fragment) I call the score Activity to show the score. In this Activity I created a "Play Again" button, which calls the Main Activity again to start the game. But everytime I click on "Play Again" button, my app crashes.
Logcat error: 04-03 15:34:43.638 26316-26316/com.example.moresche.englishqigame E/AndroidRuntime: FATAL EXCEPTION: main
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.example.moresche.englishqigame.MainActivity }
scoreActivity.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_score);
Typeface mTypeface = Typeface.createFromAsset(getAssets(),"chlo.TTF");
TextView myTextview = (TextView)findViewById(R.id.txtla);
myTextview.setTypeface(mTypeface);
Typeface m2Typeface = Typeface.createFromAsset(getAssets(),"chlo.TTF");
TextView m2yTextview = (TextView)findViewById(R.id.txtla1);
m2yTextview.setTypeface(m2Typeface);
initControls();
}
public void initControls() {
TextView final_score = (TextView) findViewById(R.id.textView103);
TextView final_scoreqi = (TextView) findViewById(R.id.textView104);
TextView lvlqi = (TextView) findViewById(R.id.textViewzzz);
Button btnxd = (Button)findViewById(R.id.btnx);
final SharedPreferences app_preferences = PreferenceManager.getDefaultSharedPreferences(this);
...
btnxd.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
app_preferences.edit().clear().commit();
Intent intent1 = new Intent ("com.example.moresche.englishqigame.MainActivity");
startActivity(intent1);
}
});
Manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.moresche.englishqigame">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".scoreActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="com.example.moresche.englishqigame.scoreActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
You are calling your intent in the wrong way.
Intent intent1 = new Intent ("com.example.moresche.englishqigame.MainActivity");
It should be something along the lines of:
Intent intent1 = new Intent(scoreActivity.this,MainActivity.class);
http://developer.android.com/training/basics/firstapp/starting-activity.html
Although that will only taking you to the page not play the game again.
I have two relevant activities: Main and ShowResult. The 2nd one is launched from a Thread in Main. This works well, but as soon as Main is in background the activity won't open. Logcat doesn't show any anomalies.
Manifest:
<activity
android:name="com.....ShowResultActivity"
android:launchMode="singleTop"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="#string/app_name"
android:screenOrientation="landscape"
android:theme="#android:style/Theme.Translucent.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name="com......MainActivity"
android:configChanges="orientation|keyboardHidden|screenSize"
android:label="#string/app_name"
android:screenOrientation="landscape"
android:theme="#android:style/Theme.Holo.Wallpaper.NoTitleBar" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Handler inside the Thread-class / executed from Thread:
iOpen = new Intent(context, ShowResultActivity.class); // is written in the constructor
Bundle b = new Bundle(); // global
b.putInt("type", 1);
b.putString("url", value);
iOpen.putExtras(b);
context.startActivity(iOpen);
ShowResult:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
onNewIntent(getIntent());
}
#Override
public void onNewIntent(Intent i) {
Bundle b = i.getExtras();
int value = b.getInt("type");
String url = b.getString("url");
Log.e("opened :)", value+" "+url);
if(value == 0) {
showPictureAsync(url);
} else if (value == 1) {
showVideoAsync(url);
}
}
Add this to your code
iOpen.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(iOpen);
Im very new to android development so please bear my ignorance.
I created a Splash screen before loading my main activity. Splash is working fine but what causes the problem is the main activity, it keeps on instantiating.
Splash.java
public class Splash extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
final AdController optinController = new AdController(
getApplicationContext(), "SECTION_ID");
final Splash splash = this;
optinController.loadOptin((Activity) splash, "SECTION_ID",
new AdOptinListener() {
public void onAdOptin() {
// once optin process is complete, continue to main app activity
launchMain();
}
}
);
}
public void launchMain() {
finish();
Intent myIntent = new Intent(Splash.this, MainActivity.class);
myIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
startActivity(myIntent);
}
}
MainActivity.java
public class MainActivity extends Activity {
private AdController myController;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myController = new AdController(getApplicationContext(), "SECTION_ID");
myController.loadNotification();
}
}
In the manifest file:
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".Splash"
android:label="#string/title_activity_splash" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="#string/title_activity_main"
android:launchMode="singleInstance">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
I used android:launchMode="singleInstance" but still it keeps on reinstantiating.
Please help. Thanks in advance.
public class Splash extends Activity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);//|Window.FEATURE_INDETERMINATE_PROGRESS
setContentView(R.layout.splash);
final Timer time = new Timer();
time.schedule(new TimerTask() {
#Override
public void run() {
Intent intent = new Intent(Splash.this,MainActivity.class);
startActivity(intent);
finish();
}
},1000);
}}
It will work , i din get you exactly by instatiating.Also do no use single instance,you are not supposed to require it here.
Yes, following is my snippet of manifest file , just use a timer for your splash screen and move to your main class after specific time.
activity android:name=".Splash"
android:screenOrientation="portrait" android:label="#string/app_name">
i think you have to remove the intent flag Intent.FLAG_ACTIVITY_SINGLE_TOP
In manifest.xml, set category as LAUNCHER which activity you want to launch first and to Other set as DEFAULT as given in below example.
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".Splash"
android:label="#string/title_activity_splash" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".MainActivity"
android:label="#string/title_activity_main"
android:launchMode="singleInstance">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
I have 2 activities with a few buttons etc. I want to start new activity. I have done everything the tutorial said, but the 2nd activity does not start!
case R.id.btnIstorija:
Intent i = new Intent (this,KlasaPrikazBaze.class);
startActivity(i);
break;
It should start my 2nd activity
public class KlasaPrikazBaze extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.prikazbaze);
TextView TV = (TextView)findViewById(R.id.tvSQLinfo);
KlasaBaze info = new KlasaBaze(this);
info.open();
String podatak = info.DohvatiPodatak();
info.close();
}
}
However nothing happens.
Manifest:
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:label="#string/app_name"
android:name=".TalentiFinalActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".KlasaPrikazBaze"></activity>
</application>
I am using
Window w = getWindow();
w.setTitle("My title");
to change title of my current Activity but it does not seem to work.
Can anyone guide me on how to change this?
Try setTitle by itself, like this:
setTitle("Hello StackOverflow");
Just an FYI, you can optionally do it from the XML.
In the AndroidManifest.xml, you can set it with
android:label="My Activity Title"
Or
android:label="#string/my_activity_label"
Example:
<activity
android:name=".Splash"
android:label="#string/splash_activity_title" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
If you want it one time & let system handle the rest (not dynamic) then do like this in your manifest file:
<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_full" > //This is my custom title name on activity. <- The question is about this one.
<intent-filter android:label="#string/app_launcher_name" > //This is my custom Icon title name (launcher name that you see in android apps/homescreen)
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
setTitle(getResources().getText(R.string.MyTitle));
There's a faster way, just use
YourActivity.setTitle("New Title");
You can also find it inside the onCreate() with this, for example:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
this.setTitle("My Title");
}
By the way, what you simply cannot do is call setTitle() in a static way without passing any Activity object.
This worked for me.
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment, container, false);
getActivity().setTitle("My Title");
//...
}
If you have multiple activities, you can set it like this in AndroidManifest.xml
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".NumbersActivity"
android:label="#string/category_numbers"
android:theme="#style/category_numbers" />
<activity
android:name=".FamilyActivity"
android:label="#string/category_family"
android:theme="#style/category_family" />
<activity
android:name=".ColorsActivity"
android:label="#string/category_colors"
android:theme="#style/category_colors" />
<activity
android:name=".PhrasesActivity"
android:label="#string/category_phrases"
android:theme="#style/category_phrases" />
<activity
android:name=".ExperimentActivity"
android:label="#string/category_experiment"
android:theme="#style/category_experiment" />
</application>
I'm using Android Studio 3.0.1.
WIth an Activity:
setTitle("Title Text");
Inside a fragment:
getActivity().setTitle("Title Text");
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.Main_Activity);
this.setTitle("Title name");
}
If you want to set title in Java file, then write in your activity onCreate
setTitle("Your Title");
if you want to in Manifest then write
<activity
android:name=".MainActivity"
android:label="Your Title" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
In Kotlin, this way:
this.title = resources.getText(R.string.fast_learning)
I have a Toolbar in my Activity and a Base Activity that overrides all Titles. So I had to use setTitle in onResume() in the Activity like so:
#Override
protected void onResume() {
super.onResume();
toolbar.setTitle(R.string.title);
}
The code helped me change the title.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_name);
ActivityName.this.setTitle("Your Activity Title");}
Inside a MainActivity:
public class act1 extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.act1);
setTitle("First Activity");
}
}
setTitle("Whatever apps");
in MainActivity.java is simplier
I would say.
If you want to change Title of activity when you change activity by clicking on the Button. Declare the necessary variables in MainActivity:
private static final String TITLE_SIGN = "title_sign";
ImageButton mAriesButton;
Add onClickListener in onCreate() and make new intent for another activity:
mTitleButton = (ImageButton) findViewById(R.id.title_button);
mTitleButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this,
SignActivity.class);
String title_act = getText(R.string.simple_text).toString();
intent.putExtra("title_act", title_act);
startActivity(intent);
finish();
}
});
SecondActivity code in onCreate():
String txtTitle = getIntent().getStringExtra("title_act");
this.setTitle(txtTitle);
If you're using onCreateOptionsMenu, you can also add setTitle code in onCreateOptionsMenu.
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
setTitle("Neue Aktivität");
return true;
}
setTitle("Welcome Activity");