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Android Build an Interactive Story App (Retired) Finishing the User Interface Loading Additional Pages

Eleni Minadaki
Eleni Minadaki
3,687 Points
Posted by Eleni Minadaki
Eleni Minadaki
3,687 Points

How to hide the button

Hi! I try to hide my previous Button only when user see my first article of the app(page 0). But I can't figure it out after a long try. Does anyone knows how to do this?

private Story mStory = new Story();

private ImageView mImageView;
private TextView mTextView;
private Page mCurrentPage;
private String mName;
private Button mPreviousButton;
private Button mNextButton;
private ScrollView mScrollView;
private Button mStartButton;
private int mfirstPage;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_story2);

  //Intent intent = getIntent();
   //mName = intent.getStringExtra(getString(R.string.key_name));

    if(mName == null){
        mName = "";
    }

    Log.d(TAG, mName);

    mImageView = (ImageView)findViewById(R.id.storyImageView);
    mTextView = (TextView)findViewById(R.id.storyTextView);
   mPreviousButton = (Button)findViewById(R.id.previousButton);
   mNextButton = (Button)findViewById(R.id.nextButton);

    mTextView.setMovementMethod(new ScrollingMovementMethod());

    loadPage(0);
}

private void loadPage(int choice) {
    mCurrentPage = mStory.getPage(choice);

    Drawable drawable = getResources().getDrawable(mCurrentPage.getImageId());
    mImageView.setImageDrawable(drawable);

    String pageText = mCurrentPage.getText();
    //add the name if placeholder included.
    //pageText  = String.format(pageText,mName);
    mTextView.setText(pageText);


       if(mCurrentPage.isSingle()){

mPreviousButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { mPreviousButton.setVisibility(View.VISIBLE); loadPage(49); }

           });
        mNextButton.setText("Start From The Beginning");
        mNextButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            mNextButton.setVisibility(View.VISIBLE);
            loadPage(0);

        }
         });


    }else{

        mPreviousButton.setText(mCurrentPage.getChoices().getText1());
        mNextButton.setText(mCurrentPage.getChoices().getText2());

        mPreviousButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int previousPage = mCurrentPage.getChoices().getPreviousPage();
                loadPage(previousPage);
            }
        });

        mNextButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int nextPage = mCurrentPage.getChoices().getNextPage();
                loadPage(nextPage);

            }


        });
}}

}