Swipe Listeners In Android
Is there something like onLeftSwipeListener and onRightSwipeListener in Android? I want to switch views swiping finger back and forward. I use a FrameLayout and an ImageView inside
Solution 1:
Its called GestureDetector and SimpleOnGestureListener which has onFling()
. Its called fling and not swipe in this context :)
Solution 2:
yourView.setOnTouchListner(onThumbTouch );
OnTouchListener onThumbTouch = new OnTouchListener() {
float previouspoint = 0 ;
float startPoint=0;
@Override
public boolean onTouch(View v, MotionEvent event) {
switch(v.getId()) {
case R.id.tvDetailsalaujairiyat: // Give your R.id.sample ...switch(event.getAction()){
case MotionEvent.ACTION_DOWN:
startPoint=event.getX();
System.out.println("Action down,..."+event.getX());
break;
case MotionEvent.ACTION_MOVE:
break;
case MotionEvent.ACTION_CANCEL:
previouspoint=event.getX();
if(previouspoint > startPoint){
//Right side swipe
}else{
// Left side swipe
}
break;
}
break;
}
returntrue;
}
};
Solution 3:
i have made a small example of swiper in android i would like share the code with you.
Chek this.
//LAYOUT///
<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical" ><ViewFlipperandroid:id="@+id/view_flipper"android:layout_width="fill_parent"android:layout_height="fill_parent"android:layout_gravity="center_vertical" ><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Soy A"android:textColor="#FFFFFF" /><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Soy B"android:textColor="#BBBFFF" /><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Soy C"android:textColor="#FFBBFF" /><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Soy D"android:textColor="#FFFFAF" /></ViewFlipper></LinearLayout>
///ACTIVITY///
import android.app.Activity;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.ViewFlipper;
publicclassSwipeActivityextendsActivity {
private Animation mInFromRight;
private Animation mOutToLeft;
private Animation mInFromLeft;
private Animation mOutToRight;
private ViewFlipper mViewFlipper;
/** Called when the activity is first created. */@OverridepublicvoidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mViewFlipper = (ViewFlipper) findViewById(R.id.view_flipper);
mViewFlipper.setDisplayedChild(0);
initAnimations();
}
privatevoidinitAnimations() {
mInFromRight = newTranslateAnimation(Animation.RELATIVE_TO_PARENT,
+1.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
mInFromRight.setDuration(500);
AccelerateInterpolatoraccelerateInterpolator=newAccelerateInterpolator();
mInFromRight.setInterpolator(accelerateInterpolator);
mInFromLeft = newTranslateAnimation(Animation.RELATIVE_TO_PARENT,
-1.0f, Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
mInFromLeft.setDuration(500);
mInFromLeft.setInterpolator(accelerateInterpolator);
mOutToRight = newTranslateAnimation(Animation.RELATIVE_TO_PARENT,
0.0f, Animation.RELATIVE_TO_PARENT, +1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
mOutToRight.setDuration(500);
mOutToRight.setInterpolator(accelerateInterpolator);
mOutToLeft = newTranslateAnimation(Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, -1.0f,
Animation.RELATIVE_TO_PARENT, 0.0f,
Animation.RELATIVE_TO_PARENT, 0.0f);
mOutToLeft.setDuration(500);
mOutToLeft.setInterpolator(accelerateInterpolator);
final GestureDetector gestureDetector;
gestureDetector = newGestureDetector(newMyGestureDetector());
mViewFlipper.setOnTouchListener(newOnTouchListener() {
publicbooleanonTouch(View v, MotionEvent event) {
if (gestureDetector.onTouchEvent(event)) {
returnfalse;
} else {
returntrue;
}
}
});
}
privateclassMyGestureDetectorextendsSimpleOnGestureListener {
privatestaticfinalintSWIPE_MIN_DISTANCE=120;
privatestaticfinalintSWIPE_MAX_OFF_PATH=250;
privatestaticfinalintSWIPE_THRESHOLD_VELOCITY=200;
publicbooleanonFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
System.out.println(" in onFling() :: ");
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
returnfalse;
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
mViewFlipper.setInAnimation(mInFromRight);
mViewFlipper.setOutAnimation(mOutToLeft);
mViewFlipper.showNext();
} elseif (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
mViewFlipper.setInAnimation(mInFromLeft);
mViewFlipper.setOutAnimation(mOutToRight);
mViewFlipper.showPrevious();
}
returnsuper.onFling(e1, e2, velocityX, velocityY);
}
}
}
Solution 4:
Here's a related quetion about implementing gestures detection:
Fling gesture detection on grid layout
You could also use a ViewFlipper with some animation to switch between the views, it looks good, here's an example implementation for enabling left/right swipe on a viewflipper:
http://www.inter-fuser.com/2009/07/android-transistions-slide-in-and-slide.html
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