I got doubt regarding Viewpager and Fragment .I want to create swipe view for that i need fragment classes with Viewpager .how could i implement such thing!!
i searched through net got something like this using viewpager!!
public class ViewPagerFragmentActivity extends FragmentActivity {
private PagerAdapter mPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.viewpager_layout);
// initialsie the pager
this.initialisePaging();
}
/**
* Initialize the fragments to be paged
*/
private void initialisePaging() {
List<Fragment> fragments = new Vector<Fragment>();
fragments.add(Fragment.instantiate(this, Fragment0.class.getName()));
fragments.add(Fragment.instantiate(this, Fragment1.class.getName()));
fragments.add(Fragment.instantiate(this, Fragment2.class.getName()));
this.mPagerAdapter = new MyPagerAdapter(super.getSupportFragmentManager(), fragments);
ViewPager pager = (ViewPager) super.findViewById(R.id.viewpager);
pager.setAdapter(this.mPagerAdapter);
}
}
Manifest File:
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name="slider.example.ViewPagerFragmentActivity"
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="slider.example.Fragment0" android:theme="@android:style/Theme.NoTitleBar" android:screenOrientation="portrait" />
<activity android:name="slider.example.Fragment1" android:theme="@android:style/Theme.NoTitleBar" android:screenOrientation="portrait" />
<activity android:name="slider.example.Fragment2" android:theme="@android:style/Theme.NoTitleBar" android:screenOrientation="portrait" />
<activity android:name=".MyPagerAdapter"></activity>
</application>
Error:
04-05 13:22:39.804: E/AndroidRuntime(468): FATAL EXCEPTION: main
04-05 13:22:39.804: E/AndroidRuntime(468): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{slider.example/slider.example.ViewPagerFragmentActivity}: java.lang.ClassNotFoundException: slider.example.ViewPagerFragmentActivity in loader dalvik.system.PathClassLoader[/data/app/slider.example-2.apk]
04-05 13:22:39.804: E/AndroidRuntime(468): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.os.Handler.dispatchMessage(Handler.java:99)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.os.Looper.loop(Looper.java:123)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.app.ActivityThread.main(ActivityThread.java:3683)
04-05 13:22:39.804: E/AndroidRuntime(468): at java.lang.reflect.Method.invokeNative(Native Method)
04-05 13:22:39.804: E/AndroidRuntime(468): at java.lang.reflect.Method.invoke(Method.java:507)
04-05 13:22:39.804: E/AndroidRuntime(468): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
04-05 13:22:39.804: E/AndroidRuntime(468): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
04-05 13:22:39.804: E/AndroidRuntime(468): at dalvik.system.NativeStart.main(Native Method)
04-05 13:22:39.804: E/AndroidRuntime(468): Caused by: java.lang.ClassNotFoundException: slider.example.ViewPagerFragmentActivity in loader dalvik.system.PathClassLoader[/data/app/slider.example-2.apk]
04-05 13:22:39.804: E/AndroidRuntime(468): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
04-05 13:22:39.804: E/AndroidRuntime(468): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
04-05 13:22:39.804: E/AndroidRuntime(468): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
04-05 13:22:39.804: E/AndroidRuntime(468): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
04-05 13:22:39.804: E/AndroidRuntime(468): ... 11 more
Could anybody guide me @thanks !!
I Found this tutorial realy clear and helpful for creating a Fragment ViewPager:
http://thepseudocoder.wordpress.com/2011/10/13/android-tabs-viewpager-swipe-able-tabs-ftw/
Check it out, in addiotion please refer to here as well:
http://androidtrainningcenter.blogspot.co.il/2012/10/viewpager-example-in-android.html http://manishkpr.webheavens.com/android-viewpager-example/ http://manishkpr.webheavens.com/android-viewpager-circle-style-example/
ViewPager without tabs:
http://thepseudocoder.wordpress.com/2011/10/05/android-page-swiping-using-viewpager/
UPDATE:
First of all remove this part:
<activity android:name="slider.example.Fragment0" android:theme="@android:style/Theme.NoTitleBar" android:screenOrientation="portrait" />
<activity android:name="slider.example.Fragment1" android:theme="@android:style/Theme.NoTitleBar" android:screenOrientation="portrait" />
<activity android:name="slider.example.Fragment2" android:theme="@android:style/Theme.NoTitleBar" android:screenOrientation="portrait" />
<activity android:name=".MyPagerAdapter"></activity>
Not the Fragments or the Adapter are not activities and you shouldn't write them into the manifest file.
and try to change this part:
<activity android:name="slider.example.ViewPagerFragmentActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
To this:
<activity android:name=".ViewPagerFragmentActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
Visit ' Replacing a fragment in a view pager ', For view pager transactions. And when you are looking to study for fragments then visit-' http://developer.android.com/guide/components/fragments.html#Lifecycle '
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