Swipecards
Travis master:
A Tinder-like cards effect as of August 2014. You can swipe left or right to like or dislike the content.
The library creates a similar effect to Tinder's swipable cards with Fling animation.
It handles greatly asynchronous loading of adapter's data and uses the same layout parameters as FrameLayout (you may use android:layout_gravity
in your layout xml file).
Installation
Go ahead find the latest version on Gradle please cowboy!
Be sure to add the @aar
suffix.
dependencies {
compile 'com.lorentzos.swipecards:library:X.X.X@aar'
}
Example
The example is quite straightforward and documented in comments.
You may find it under the relevant directory.
public class MyActivity extends Activity {
...
@Override
protected void onCreate(Bundle savedInstanceState) {
...
SwipeFlingAdapterView flingContainer = (SwipeFlingAdapterView) findViewById(R.id.frame);
al = new ArrayList<String>();
al.add("php");
al.add("c");
al.add("python");
al.add("java");
arrayAdapter = new ArrayAdapter<String>(this, R.layout.item, R.id.helloText, al );
flingContainer.setAdapter(arrayAdapter);
flingContainer.setFlingListener(new SwipeFlingAdapterView.onFlingListener() {
@Override
public void removeFirstObjectInAdapter() {
Log.d("LIST", "removed object!");
al.remove(0);
arrayAdapter.notifyDataSetChanged();
}
@Override
public void onLeftCardExit(Object dataObject) {
Toast.makeText(MyActivity.this, "Left!", Toast.LENGTH_SHORT).show();
}
@Override
public void onRightCardExit(Object dataObject) {
Toast.makeText(MyActivity.this, "Right!", Toast.LENGTH_SHORT).show();
}
@Override
public void onAdapterAboutToEmpty(int itemsInAdapter) {
al.add("XML ".concat(String.valueOf(i)));
arrayAdapter.notifyDataSetChanged();
Log.d("LIST", "notified");
i++;
}
});
flingContainer.setOnItemClickListener(new SwipeFlingAdapterView.OnItemClickListener() {
@Override
public void onItemClicked(int itemPosition, Object dataObject) {
makeToast(MyActivity.this, "Clicked!");
}
});
}
}
You can alternatively use a helpful method which sets in one line both the listeners and the adapter.
flingContainer.init(this, arrayAdapter);
Adding buttons is easy. Get the top card listener and trigger manually the right or left animation.
On the end of the animation the above listeners (e.g. removeFirstObjectInAdapter) will be triggered depending on the direction.
flingContainer.getTopCardListener().selectRight();
Tip: If you start a new Activity in the onItemClicked
you will probably want to avoid double activity instances.
If so these solutions might work for you: 1,
2 and I personally prefer 3
Configuration
You can optionally specify some attrs for the animation and the stack. The easiest way is in xml:
<com.lorentzos.flingswipe.SwipeFlingAdapterView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:rotation_degrees="16"
app:max_visible="4"
app:min_adapter_stack="6" />
Or use styles:
<style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
<item name="SwipeFlingStyle">@style/SwipeFling</item>
</style>
- rotation_degrees: the degrees of the card rotation offset
- max_visible: the max visible cards at the time
- min_adapter_stack: the min number of objects left. Initiates onAdapterAboutToEmpty() method.
License
Copyright 2014 Dionysis Lorentzos
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.