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Avoid race between updating stepper and ViewPager instantiating the steps #127

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Merged
merged 1 commit into from
May 24, 2017
Merged

Avoid race between updating stepper and ViewPager instantiating the steps #127

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8 changes: 4 additions & 4 deletions material-stepper/src/main/java/com/stepstone/stepper/StepperLayout.java
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Handler;
import android.support.annotation.AttrRes;
import android.support.annotation.ColorInt;
import android.support.annotation.DrawableRes;
Expand All @@ -40,6 +39,7 @@
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.Button;
import android.widget.LinearLayout;

Expand Down Expand Up @@ -310,13 +310,13 @@ public void setAdapter(@NonNull StepAdapter stepAdapter) {
mStepperType.onNewAdapter(stepAdapter);

// this is so that the fragments in the adapter can be created BEFORE the onUpdate() method call
new Handler().post(new Runnable() {
mPager.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void run() {
public void onGlobalLayout() {
mPager.getViewTreeObserver().removeGlobalOnLayoutListener(this);
onUpdate(mCurrentStepPosition, false);
}
});

}

/**
Expand Down