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POandroid - swiping between activities
 

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    <p>I'm developing android app for a local newspapers and atm I'm trying to implement swiping between articles. My main activity is HNappActivity and activity for article showing is AcrticleActivity. My problem is, that the swiping just wont work and I'm desperate because I have no idea whats wrong. Here's code, where swiping is implemented:</p> <pre><code>public class ArticleActivity extends SherlockActivity { int hnCatIndex, hnArtIndex; WebView hnWebView; private static final int SWIPE_MIN_DISTANCE = 120; private static final int SWIPE_MAX_OFF_PATH = 250; private static final int SWIPE_THRESHOLD_VELOCITY = 200; private GestureDetector gestureDetector; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.article); hnCatIndex = getIntent().getExtras().getInt("catIndex", 0); hnArtIndex = getIntent().getExtras().getInt("artIndex", 0); Article article = Source.getInstance().getCategory(hnCatIndex).getArticle(hnArtIndex); hnWebView=(WebView)findViewById(R.id.webview); hnWebView.loadData(article == null ? "" : article.getBody(), "text/html", "utf-8"); gestureDetector = new GestureDetector(new MyGestureDetector()); View articleview=(View) findViewById(R.id.article_main); articleview.setOnTouchListener(new View.OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { if (gestureDetector.onTouchEvent(event)) { return true; } return false; } }); } class MyGestureDetector extends SimpleOnGestureListener { @Override public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { if (Math.abs(e1.getY() - e2.getY()) &gt; SWIPE_MAX_OFF_PATH) { return false; } // right to left swipe if(e1.getX() - e2.getX() &gt; SWIPE_MIN_DISTANCE &amp;&amp; Math.abs(velocityX) &gt; SWIPE_THRESHOLD_VELOCITY) { hnArtIndex++; Intent intent = new Intent(ArticleActivity.this.getBaseContext(), ArticleActivity.class); intent.putExtra("catIntext",hnCatIndex); intent.putExtra("artIndex",hnArtIndex); startActivity(intent); ArticleActivity.this.overridePendingTransition( R.anim.slide_in_right, R.anim.slide_out_left ); // right to left swipe } else if (e2.getX() - e1.getX() &gt; SWIPE_MIN_DISTANCE &amp;&amp; Math.abs(velocityX) &gt; SWIPE_THRESHOLD_VELOCITY) { if (hnArtIndex==1) { Intent intent = new Intent(ArticleActivity.this.getBaseContext(), HNappActivity.class); startActivity(intent); } else { hnArtIndex--; Intent intent = new Intent(ArticleActivity.this.getBaseContext(), ArticleActivity.class); intent.putExtra("catIntext",hnCatIndex); intent.putExtra("artIndex",hnArtIndex); startActivity(intent); } ArticleActivity.this.overridePendingTransition( R.anim.slide_in_left, R.anim.slide_out_right ); } return false; } @Override public boolean onDown(MotionEvent e) { return true; } } </code></pre> <p>}</p>
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