Question

I have a LinearLayout, I am dynamically adding TextView, ImageView to that LinearLayout, now I have added OnClickListener to these TextViews and ImageViews.

I have an arraylist which has 10 items in it, using a for loop I am getting each value and displaying, since it’s quiz app I have next and previous buttons, when I click on that I am displaying items one by one from the arraylist.Now I need slide In and slide Out animation to apply to this Linear Layout.

I have seen this :

Link 1

Link 2

and also I have tried this

slideIn = new TranslateAnimation(
    TranslateAnimation.RELATIVE_TO_PARENT, 1.0f,
    TranslateAnimation.RELATIVE_TO_PARENT, 0.0f,
    TranslateAnimation.RELATIVE_TO_PARENT, 0.0f,
    TranslateAnimation.RELATIVE_TO_PARENT, 0.0f);

slideIn.setDuration(500);
slideOut = new TranslateAnimation(
    TranslateAnimation.RELATIVE_TO_PARENT, 0.0f,
    TranslateAnimation.RELATIVE_TO_PARENT, -1.0f,
    TranslateAnimation.RELATIVE_TO_PARENT, 0.0f,
    TranslateAnimation.RELATIVE_TO_PARENT, 0.0f);

slideOut.setDuration(500);

But not working please help on this.

EDIT:

Problem: I have applied this to the linear layout but what happens is that when i click on next button current question will slide left and a blank screen then it will slide in and display next question, but I want as soon as the current question slides out it should be followed by next question.

Answer 1

If your layouts are having identical content, create two layouts inside a view flipper.
Load first view with data and show it.
When user clicks next or previous, load next view with data and keep a flag to show that 2nd view is now visible and show it with animation.

Now onwards load the appropriate views with data based on the flag values and call shownext().

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mainFlipper = (ViewFlipper) findViewById(R.id.flipper);
    firstLayout = (LinearLayout) findViewById(R.id.layout1);
    secondLayout = (LinearLayout) findViewById(R.id.layout2);


    findViewById(R.id.btnPrevious).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            showPrevious();
        }
    });

    findViewById(R.id.btnNext).setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            showNext();
        }
    });

}

private void showNext() {
    mainFlipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_in_left));
    mainFlipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_out_right));
    flip();
}

private void showPrevious() {
    mainFlipper.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_in_right));
    mainFlipper.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.slide_out_left));
    flip();
}

private void flip() {
    if(isFirstVisible) {
        isFirstVisible = false;
        secondLayout.removeAllViews();
        secondLayout.addView(getTextView("Second"));
    } else {
        isFirstVisible = true;
        firstLayout.removeAllViews();
        firstLayout.addView(getTextView("First"));
    }
    mainFlipper.showNext();
}

private TextView getTextView(String txt) {
    TextView txtView = new TextView(this);
    txtView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
    txtView.setText(txt);
    return txtView;
}