A pager for Android with parallax effect

Javier Gonzalez

Last update: Dec 29, 2022

Related tags

Animations ParallaxPagerTransformer

Overview

ParallaxPagerTransformer

A pager transformer for Android with parallax effect

Installation

in your build.gradle file

dependencies {
    // ...
    compile 'com.xgc1986.android:parallaxpagertransformer:1.0.4'
}

Usage

minSdkVersion 11

You only have to pass to the ParallaxTransformer the id of the element you want have the parallax effect

	//...
	import com.xgc1986.parallaxPagerTransformer.ParallaxPagerTransformer;

	public class MainActivity extends Activity {

		ViewPager mPager;
    	FragmentStatePagerAdapter mAdapter;

		public void onCreate(Bundle savedInstanceState) {
			/** ... **/

			mPager = (ViewPager) findViewById(R.id.pager);

        	// creating the parallaxTransformer, you only need to pass the id of the View (or ViewGroup) you want to do the parallax effect

        	mPager.setPageTransformer(false, new ParallaxPagerTransformer(R.id.parallaxContent));
        	mAdapter = new FragmentStatePagerAdapter(getSupportFragmentManager());
        	mAdapter.setPager(mPager);

        	/** ... **/
		}
	}

And that's all, you can see in action Here

Other works

Ripple Button

License

Copyright 2015 Javier Gonzalez

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Comments

Android Studio 0.8.+ Gradle import issue

Hello, I am getting following error while trying to sync Gradle after migrating from AS 0.6 to AS 0.8:

Error:Module version com.xgc1986.ParallaxPagerTransformer:library:0.2-SNAPSHOT depends on libraries but is not a library itself

I'm not sure how to resolve this one. Maybe somebody else had the same issue and figured it out.

Regards

opened by dbCoop 2
android:allowBackup conflict

Good morning:

Seems like you guys have in the library manifest, in the application tag, the android:allowBackup set on true.

This raises conflict when i try to put in my own manifest the android:allowBackup to false, and the "tools:replace" feature seems like doesn't work in allowBackup, there's even an issue raised in code.google.com.

A solution: remove in your manifest the android:allowBackup.

Thanks.

opened by RafaGonP 1
NullPointer Exception

When pager is iset usiing the code in MainActivity, mPager.setAdapter(mAdapter);

I get this error

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v4.app.Fragment.setMenuVisibility(boolean)' on a null object reference at android.support.v4.app.FragmentStatePagerAdapter.instantiateItem(FragmentStatePagerAdapter.java:116) at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:837) at android.support.v4.view.ViewPager.populate(ViewPager.java:987) at android.support.v4.view.ViewPager.populate(ViewPager.java:919) at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441) at android.view.View.measure(View.java:17448) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5465) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436) at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1083) at android.widget.LinearLayout.onMeasure(LinearLayout.java:615) at android.view.View.measure(View.java:17448) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5465) at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) at android.view.View.measure(View.java:17448) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5465) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436) at android.widget.LinearLayout.measureVertical(LinearLayout.java:722) at android.widget.LinearLayout.onMeasure(LinearLayout.java:613) at android.view.View.measure(View.java:17448) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5465) at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2560) at android.view.View.measure(View.java:17448) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2031) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1189) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1402) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1077) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5884) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) at android.view.Choreographer.doCallbacks(Choreographer.java:580) at android.view.Choreographer.doFrame(Choreographer.java:550) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5312) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:901) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:696)

opened by deepaksime 1
Project title

Thank you for the great library. I think the title is confusing. You can make lots of things Parallax. By the title, we cannot know what the library is doing. The same goes for the description as well.

Name suggestion: ParallaxBackgroundViewPager Or ParallaxBackgroundPagerTransformer

opened by tasomaniac 1
Migrate from JCenter

In may this library won't be available from JCenter: https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/

Please migrate this library to some other repository

opened by nicemak 1
Cannot set 'scaleX' to Float.NaN exception when pages pulled quickly, with possible solution

The problem mentioned in https://github.com/nonzeroapps/whatisnewdialog/issues/13

possible solution

adding !Float.isNaN(sc) as here: https://github.com/nonzeroapps/whatisnewdialog/issues/13#issuecomment-570759865

at Line: https://github.com/xgc1986/ParallaxPagerTransformer/blob/2483fd51c6a2e6e6859e4a21272d9e92995e5407/parallaxpagertransformer/src/main/java/com/xgc1986/parallaxPagerTransformer/ParallaxPagerTransformer.java#L37

opened by osamz 0
What about fragments?

Each fragment has its own xml file, and each xml has its own layout with its own ids... how to implement PPT in this case? I think multiple ids is necessary. thanks.

opened by andersonbadari 1
minSdkVersion in lib is 16 and not 11 as the documentation states

The lib seems to work in API 11, but gradle.build in the lib project specifies minSdkVersion 16 which is generating issues in projects using lower sdk versions: https://github.com/xgc1986/ParallaxPagerTransformer/blob/master/parallaxpagertransformer/build.gradle#L22

I am having this issue when using the ParallaxPagerTransformer lib in my project using minSdkVersion 15:

Error:Execution failed for task ':app:processDebugManifest'.

Manifest merger failed : uses-sdk:minSdkVersion 15 cannot be smaller than version 16 declared in library [com.xgc1986.android:parallaxpagertransformer:1.0.4] /MyApp/app/build/intermediates/exploded-aar/com.xgc1986.android/parallaxpagertransformer/1.0.4/AndroidManifest.xml Suggestion: use tools:overrideLibrary="com.xgc1986.parallaxpagerlibrary" to force usage

opened by arlm001 1

Owner

Javier Gonzalez

GitHub

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