Skip to content

Added code to save the current screen to handle orientation changes or an #4

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
Accused187 wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Added code to save the current screen to handle orientation changes or an #4

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
48 changes: 48 additions & 0 deletions src/com/github/ysamlan/horizontalpager/HorizontalPager.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,22 @@ private void init() {
mMaximumVelocity = configuration.getScaledMaximumFlingVelocity();
}

@Override
protected Parcelable onSaveInstanceState() {
final SavedState state = new SavedState(super.onSaveInstanceState());
state.mCurrentScreen = mCurrentScreen;
return state;
}

@Override
protected void onRestoreInstanceState(Parcelable state) {
SavedState savedState = (SavedState) state;
super.onRestoreInstanceState(savedState.getSuperState());
if (savedState.mCurrentScreen != -1) {
mCurrentScreen = savedState.mCurrentScreen;
}
}

@Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
Expand Down Expand Up @@ -501,4 +517,36 @@ public static interface OnScreenSwitchListener {
*/
void onScreenSwitched(int screen);
}

/**
* A parcelable so we can save our current screen and return to it after an activity destroy.
*/
public static class SavedState extends BaseSavedState {
int mCurrentScreen = -1;

SavedState(Parcelable superState) {
super(superState);
}

private SavedState(Parcel in) {
super(in);
mCurrentScreen = in.readInt();
}

@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeInt(mCurrentScreen);
}

public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() {
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}

public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
}
}