How to Start New Activity

[Muhammad Imad Qureshi]

How do I start new activity from an activity. I want to start a new activity from on click listener. Basically, I have a class that extends "Activity" and I would like to call its onClick method but I do not have a Bundle object available.

Thanks
Imad

[Pratik Goswami]

Hi Imad,

Just use,

startActivity(new Intent(arg0.getContext(),NewActivity.class));

Thanks
Pratik Goswami

[Monu Tripathi]

You should consider reading this and maybe bookmark it. You can find answer to your question under the question: Opening a new screen

[Muhammad Imad Qureshi]

Thanks a lot for your reply. Now I am getting following error although I have added activity to my manifest file.

android.content.ActivityNotFoundException: Unable to find explicit activity class {com.android.imad.futureValue/FutureValueFunction}; have you declared this activity in your AndroidManifest.xml?

Here is my manifest file. Future Value is actually started by payment function.

Thanks
Imad

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.imad.paymentFunction"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".PaymentFunction"
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.android.imad.futureValue.FutureValueFunction"
android:label="@string/fvText">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="6" />

</manifest>

[Monu Tripathi]

A few things :
1. Use code tags when posting code, it improves readability.(You can use the Edit Button)
2. Note that only one of the activity should be having :

<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />

in their intent filter, other wise you will see two different icons for your application in the Launcher menu.
3. Can you also post the code you used to start the new Activity?

[Muhammad Imad Qureshi]

Thank you so much Monu. I resolved this problem and this is how I am doing it now.

  <activity android:name="com.android.imad.activities.FutureValueFunction"
                  android:label="@string/fvText">
            <intent-filter>
                <action android:name="com.android.imad.FUTUREVALUE" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity> 
 

and in my java file I have

   
Intent futureValueIntent = new Intent ("com.android.imad.FUTUREVALUE", null);
				//futureValueIntent.setClassName ("com.android.imad.futureValue","com.android.imad.futureValue.FutureValueFunction");
				startActivity(futureValueIntent); 	 

Would you like to add any suggestion to this?
Thanks
Imad

[Monu Tripathi]

Looks good to me.