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How do I specify multiple activities in AndroidManifest one for splash screen, one for mainactivity - pass the original intent to the mainactivy

I am only new to android this is my first application.
I am making progress on an app that fires when the NFC reader detects a TAG that contains NDEF messages, specifically when a URL is detect matching my domain.
I would like to add a splashscreen that fires triggered by the Android INTENT of but then passes the original INTENT to the mainactivity for further processing, I have made a start but not sure how to marry up the manifest and code to do what I am after.
MANIFEST.XML
<activity
android:name=".SplashScreenActivity"
android:theme="#style/Theme.MyApp.SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".MainActivity" android:theme="#style/Theme.MyApp.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.nfc.action.NDEF_DISCOVERED"/>
<category android:name="android.intent.category.DEFAULT"/>
<data android:scheme="http"
android:host="<my custom domain>"/>
</intent-filter>
</activity>
Any help on how I should structure my Manifest to deal with this scenario, the SplashScreenActivity I could use the intent filters here to ensure that it is triggered, but then I create a new intent which means losing the NDEF extras.
public class SplashScreenActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
startActivity(new Intent(SplashScreenActivity.this, MainActivity.class));
finish();
}
}
I would like to be able to "just pass" the whole original INTENT to the mainactivity but I am unsure how to do this.
Here is the code that extracts the NDEF messages from the INTENT any ideas appreciated.
private void readFromIntent(Intent intent) {
String action = intent.getAction();
if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(action)
|| NfcAdapter.ACTION_TECH_DISCOVERED.equals(action) ||
NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) {
Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
logViewModel.insert(new LogEntry("READFROMINTENT ACTUALLY FIRED", "Action " + intent.getExtras()));
if (rawMsgs != null) {
msgs = new NdefMessage[rawMsgs.length];
for (int i = 0; i < rawMsgs.length; i++) {
msgs[i] = (NdefMessage) rawMsgs[i];
}
getNdefRecords(msgs);
addLinkToDbFromRecord(records);
}
//buildTagViews(msgs);
}
}

So I managed to solve this by doing the following.
I moved my intent filters from MainActivity to the .splashscreen actvity changed the category of mainactivity to DEFAULT, and allowed splashscreen activity to remain the LAUNCHER
<activity
android:name=".MainActivity"
android:theme="#style/Theme..NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name="com.myap.app.SplashScreenActivity"
android:theme="#style/Theme.myapp.SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.nfc.action.NDEF_DISCOVERED"/>
<category android:name="android.intent.category.DEFAULT"/>
<data android:scheme="http"
android:host="my domain"/>
</intent-filter>
</activity>
In my splashscreen activity i used the following code to copy the extras from the original intent, set the action to the expected action the mainactivity was designed to handle and used this to start the main activity
public class SplashScreenActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent startMainActivity = new Intent(SplashScreenActivity.this, MainActivity.class);
startMainActivity.putExtras(getIntent());
startMainActivity.setAction(NfcAdapter.ACTION_NDEF_DISCOVERED);
startActivity(startMainActivity);
finish();
}
}

Android: SingleTop behavior with multiple intent filters

I am struggling with the following strange behavior of SingleTop activities.
I have defined some intent filters in that activity:
<activity android:name="com.example.DashboardActivity"
android:screenOrientation="landscape"
android:launchMode="singleTop"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<data android:scheme="video" />
<category android:name="android.intent.category.BROWSABLE"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.EDIT" />
<data android:scheme="survey" />
<category android:name="android.intent.category.BROWSABLE"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.CALL" />
<data android:scheme="call" />
<category android:name="android.intent.category.BROWSABLE"/>
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
This code should start the activity:
webView.setWebViewClient(new WebViewClient()
{
public boolean shouldOverrideUrlLoading(WebView view, String url) {
try {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse(url));
startActivity(intent);
return true;
} catch(ActivityNotFoundException e) {
Log.e(TAG,"Could not load url"+url);
}
return super.shouldOverrideUrlLoading(view, url);
}
});
in the onResume of the DashboardActivity I check for the according action:
public void onResume(){
super.onResume();
Fragment fragment = null;
if (Intent.ACTION_VIEW.equals(intent.getAction())) {
extras.putParcelable("uri", getIntent().getData());
fragment = new VideoplayerFragment();
} else {
fragment = new DashboardFragment();
}
addOrReplaceFragment(fragment, extras);
}
But when I run this code, I always get the android.intent.action.MAIN action. If I remove the singleTop launch mode, it launches a new activity, but passes the correct intent. I have to use the same instance of the activity, so singleTop, singleTask or singleInstance must do the job. But I don't know what's going wrong here. HELP!

Intent.ACTION_VIEW.equals(intent.getAction())
Where is this intent coming from? In order to catch the new Intent you must use
onNewIntent().

create a thread into setOnClickListener

I have an Intent into setOnClickListener that it open a list of contacts into a new activity,now,
when I test this example at AVD it is ok, but when I test
on a mobile phone as soon as I touch button I get closing message.
why ?!
Is need a Thread ?
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(Intent.ACTION_PICK,Uri.parse("content://contacts/"));
startActivityForResult(intent, 1);
}});
My Manifest.xml
<activity
android:name="com.example.ex21.ShoMyList"
android:label="Picker">
<intent-filter>
<action android:name="Piker"></action>
<category android:name="android.intent.category.DEFAULT"></category>
<data android:path="contacts" android:scheme="content"></data>
</intent-filter>
</activity>
<activity
android:name="com.example.ex21.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>

use :
Intent intent = new Intent(Intent.ACTION_PICK, Uri.parse("content://picker/contacts/"));
or
Intent intent= new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
I think your uri is incorrect.

Start an Activity not from an Intent

How can I start an Activity without using an Intent? The only rule I have got is
if( var == true ) startActivity();
but startActivity(); needs an Intent as a parameter.

Just create a new intent for the activity you want to start. depending on where you are you will need the app context thought.
Intent i = new Intent(getApplicationContext(), YourActivity.class);
startActivity(i);

Here's how to navigate to a second Activity (another page) using an Intent.
public void onClick(View v)
{
Intent intent = new Intent(this, SecondActivity.class);
startActivity(intent);
}
Also, don't forget to adjust the AndroidManifest.xml for each Activity.
<application android:label="#string/app_name" android:icon="#drawable/ic_launcher">
<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>
<activity android:name="SecondActivity"
android:label="#string/second_label">
<intent-filter>
<action android:name="android.intent.action.SECOND" /> //should be namespace of your company I guess
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>

Android camera intents

Roger,
I see that you've been tinkering with camera intents. I'm having real trouble just getting
a simple app to tell me when the camera button has been pressed. Do you have some code to help me on my way.
Thanks.
David

In the manifest, you need to state you want to receive the intent for the camera button:
<receiver android:name="domain.namespace.CameraReceiver">
<intent-filter>
<action android:name="android.intent.action.CAMERA_BUTTON"/>
</intent-filter>
</receiver>
<activity android:name="domain.namespace.MyCameraActivity"
android:label="#string/app_name" android:screenOrientation="landscape" android:icon="#drawable/camera"
android:clearTaskOnLaunch="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.media.action.IMAGE_CAPTURE" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
In the receiver:
public void onReceive(Context context, Intent intent) {
KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT);
if (event == null) {
return;
}
//prevent the camera app from opening
abortBroadcast();
Intent i = new Intent(Intent.ACTION_MAIN);
i.setClass(context, MyCameraActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(i);
}