Nuno Malés Nuno Malés - 5 months ago 33
Android Question

Change Fragment layout on orientation

I need a solution! error in addView() i don´t know the answer.....

I want to change the layout, using the previous views

i need help!

chart ---- https://github.com/PhilJay/MPAndroidChart

Process: com.example.tiago.alsrm_android, PID: 23337
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
at android.view.ViewGroup.addViewInner(ViewGroup.java:3784)
at android.view.ViewGroup.addView(ViewGroup.java:3637)
at android.view.ViewGroup.addView(ViewGroup.java:3582)
at android.view.ViewGroup.addView(ViewGroup.java:3558)
at com.example.tiago.alsrm_android.Fragment.EDA_Fragment.onConfigurationChanged(EDA_Fragment.java:174)

public class EDA_Fragment extends Fragment {

private Intent intentService;
private Chart chart = null;
private View fragmentRootContainer;

@Override
public View onCreateView(final LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

if(fragmentRootContainer == null) {
fragmentRootContainer = inflater.inflate(R.layout.activity_exam, container, false);

if (chart == null)
chart = new Chart((LineChart) fragmentRootContainer.findViewById(R.id.chart), EDA, 1023f, 1f);


return fragmentRootContainer;
}

@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setRetainInstance(true);
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);

LayoutInflater inflater = LayoutInflater.from(getActivity());
ViewGroup viewGroup = (ViewGroup) getView();
viewGroup.removeAllViewsInLayout();

// Checks the orientation of the screen
if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {

View view = inflater.inflate(R.layout.activity_exam, null);

LineChart lineChart = (LineChart)view.findViewById(R.id.chart);
lineChart.addView(chart.getChart());


} else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){

View view = inflater.inflate(R.layout.activity_exam, null);

LineChart lineChart = (LineChart)view.findViewById(R.id.chart);
lineChart.addView(chart.getChart());

}
}


}

Answer

------first--------

add this in AndroidManifest

android:name=".Activity.EDA_Activity"
android:configChanges="orientation"

------second----------

  in layout PORTRAIT add this -> android:orientation="vertical"

  in layout LANDSCAPE add this ->  android:orientation="horizontal"

--------third-----------

public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);

    LayoutInflater inflater = LayoutInflater.from(getActivity());
    LinearLayout linearLayout = (LinearLayout) getView();
    if(linearLayout != null)
        linearLayout.removeAllViewsInLayout();

    // Checks the orientation of the screen
    if (newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE) {

        ViewGroup parentViewGroup = (ViewGroup)chart.getChart().getParent();
        if (parentViewGroup != null)
            parentViewGroup.removeView(chart.getChart());

        fragmentRootContainer = inflater.inflate(R.layout.activity_exam, linearLayout, true);
        LineChart lineChart = (LineChart) fragmentRootContainer.findViewById(R.id.chart);
        lineChart.addView(chart.getChart());
    }
    else if (newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){

        ViewGroup parentViewGroup = (ViewGroup)chart.getChart().getParent();
        if (parentViewGroup != null)
            parentViewGroup.removeView(chart.getChart());

        fragmentRootContainer = inflater.inflate(R.layout.activity_exam, linearLayout, true);
        inflater.inflate(R.layout.activity_exam, linearLayout, false);

        LineChart lineChart = (LineChart) fragmentRootContainer.findViewById(R.id.chart);
        lineChart.addView(chart.getChart());
    }
}
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