Parsania Hardik Parsania Hardik - 7 days ago 6
Java Question

Touch between scrollview and viewpager

I am using viewpager as parent and have three fragments as child. Inside all fragments I have 12 edittext. Now I am able to scroll vertically within fragment but when I scroll horizontally fragments doesn't changing.

activity.xml

<android.support.design.widget.CoordinatorLayout 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">

<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabGravity="fill"
app:tabMode="fixed" />


<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />



</android.support.design.widget.AppBarLayout>

</android.support.design.widget.CoordinatorLayout>


fragment.xml

<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/scrollView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#fffbfbfb"
android:padding="1dp">
............12 edittext
</scrollview>


activity.java

public class MainActivity extends AppCompatActivity {


private TabLayout tabLayout;
public ViewPager viewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);


viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);

tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);

viewPager.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {

return false;
}
});
}

private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new OneFragment(), "ONE");
adapter.addFragment(new TwoFragment(), "TWO");
adapter.addFragment(new ThreeFragment(), "THREE");
viewPager.setAdapter(adapter);
}

class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();

public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}

@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}

@Override
public int getCount() {
return mFragmentList.size();
}

public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}

@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}


fragment.java

public class OneFragment extends Fragment {

private EditText etA, etB, etC, etD, etE, etF, etG, etH, etI, etJ, etK, etL;
private TextView tvProfit;
private ScrollView scrollView;

public OneFragment() {
// Required empty public constructor
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_one, container, false);

etA = (EditText) view.findViewById(R.id.etboxA);
etB = (EditText) view.findViewById(R.id.etboxB);
etC = (EditText) view.findViewById(R.id.etboxC);
etD = (EditText) view.findViewById(R.id.etboxD);
etE = (EditText) view.findViewById(R.id.etboxE);
etF = (EditText) view.findViewById(R.id.etboxF);
etG = (EditText) view.findViewById(R.id.etboxG);
etH = (EditText) view.findViewById(R.id.etboxH);
etI = (EditText) view.findViewById(R.id.etboxI);
etJ = (EditText) view.findViewById(R.id.etboxJ);
etK = (EditText) view.findViewById(R.id.etboxK);
etL = (EditText) view.findViewById(R.id.etboxL);

tvProfit = (TextView) view.findViewById(R.id.tvprofit);

scrollView = (ScrollView) view.findViewById(R.id.scrollView);

scrollView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {

scrollView.getParent().requestDisallowInterceptTouchEvent(true);
return false;
}
});
return view;


}


@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Override
public void onResume(){

super.onResume();


etB.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {

}

@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {

if (!etB.getText().toString().equals("")) {
float ans = (float) (Float.parseFloat(etB.getText().toString()) / 355.6164);
etC.setText(String.valueOf(ans));
} else {
etC.setText("");
}
}

@Override
public void afterTextChanged(Editable s) {

}
});
}


So suggest me how to switch touch events between scrollview and viewpager

Answer

Modify your code as follows Perhaps the problem is resolved.Cut and copy viewpager out of TabLayout .

<android.support.design.widget.CoordinatorLayout       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">
   <android.support.design.widget.AppBarLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
     <android.support.design.widget.TabLayout
        android:id="@+id/tabs"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabGravity="fill"
        app:tabMode="fixed" />
    </android.support.design.widget.AppBarLayout>
    <android.support.v4.view.ViewPager
       android:id="@+id/viewpager"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
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