このアクティビティにスワイプを追加してフラグメントを切り替えたいのですが、現在、アプリは動きを検出しています。タブの切り替えは SwipeLeft と SwipeRight 関数で行うべきなのですが、やり方がわかりません。誰かが私にそれを行う方法を説明してもらえますか?
public class Cantina extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final ActionBar actionBar = getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
Tab tabA = actionBar.newTab();
tabA.setText("seg");
tabA.setTabListener(new TabListener<MyFragmentA>(this, "seg", MyFragmentA.class));
actionBar.addTab(tabA);
... 3 tabs
Tab tabE = actionBar.newTab();
tabE.setText("sex");
tabE.setTabListener(new TabListener<MyFragmentE>(this, "sex", MyFragmentE.class));
actionBar.addTab(tabE);
if (savedInstanceState != null) {
int savedIndex = savedInstanceState.getInt("SAVED_INDEX");
getActionBar().setSelectedNavigationItem(savedIndex);
}
}
@Override
protected void onSaveInstanceState(Bundle outState) {
// TODO Auto-generated method stub
super.onSaveInstanceState(outState);
outState.putInt("SAVED_INDEX", getActionBar().getSelectedNavigationIndex());
}
public static class TabListener<T extends Fragment>
implements ActionBar.TabListener{
private final Activity myActivity;
private final String myTag;
private final Class<T> myClass;
public TabListener(Activity activity, String tag, Class<T> cls) {
myActivity = activity;
myTag = tag;
myClass = cls;
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
Fragment myFragment = myActivity.getFragmentManager().findFragmentByTag(myTag);
// Check if the fragment is already initialized
if (myFragment == null) {
// If not, instantiate and add it to the activity
myFragment = Fragment.instantiate(myActivity, myClass.getName());
ft.add(android.R.id.content, myFragment, myTag);
} else {
// If it exists, simply attach it in order to show it
ft.attach(myFragment);
}
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
Fragment myFragment = myActivity.getFragmentManager().findFragmentByTag(myTag);
if (myFragment != null) {
// Detach the fragment, because another one is being attached
ft.detach(myFragment);
}
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
public void SwipeRight(){
Toast.makeText(this, "RIGHT", Toast.LENGTH_LONG).show();
}
private void SwipeLeft(){
Toast.makeText(this, "LEFT", Toast.LENGTH_LONG).show();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// TODO Auto-generated method stub
return gestureDetector.onTouchEvent(event);
}
SimpleOnGestureListener simpleOnGestureListener
= new SimpleOnGestureListener(){
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
float sensitvity = 50;
if((e1.getX() - e2.getX()) > sensitvity){
SwipeLeft();
}else if((e2.getX() - e1.getX()) > sensitvity){
SwipeRight();
}
return true;
}
};
GestureDetector gestureDetector
= new GestureDetector(simpleOnGestureListener);
}