Android switching views

Question

Ok, so I have worked the fading out content from within an id (thanks to https://stackoverflow.com/a/4570977/971392).

I have the following function:

public void switchView(View view) {
        LayoutInflater inflater = LayoutInflater.from(getBaseContext());
        View to_load = inflater.inflate(R.layout.activity_register, null, false); 

        RelativeLayout rl = (RelativeLayout) findViewById(R.id.content_login);
        Animation fadeOutAnim = AnimationUtils.loadAnimation(LoginActivity.this, R.anim.fadeout);
        rl.startAnimation(fadeOutAnim);
        //rl.setVisibility(View.GONE);
        //rl.removeView(view);
        rl.addView(to_load);
}

It does the desired action, IF I comment the rl.startAnimation(fadeOutAnim) which is there only for the purpose of giving an animation on change view.

With the animation executing, the function changes the view through the rl.addView() but then applies the fadeOut and everything disappears.

So, how may I use the fadeout, without it removing my content?

score 1 · Accepted Answer · answered Feb 20 '13 at 19:13

1

you need to delay the rl.addView(to_load); call until after the fade out animation is complete. The way to do that is with an Animation Listener.

Try like this:

AnimationListener animListen = new AnimationListener() {
    public void onAnimationEnd(Animation animation) {
        rl.addView(to_load);
    }

    public void onAnimationRepeat(Animation animation) {
    }

    public void onAnimationStart(Animation animation) {
    }
});

Animation fadeOutAnim = AnimationUtils.loadAnimation(LoginActivity.this, R.anim.fadeout);
fadeOutAnim.setAnimationListener(animListen);
rl.startAnimation(fadeOutAnim);

answered Feb 20 '13 at 19:13

FoamyGuy

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will try tomorrow and let you know – Alex Feb 20 '13 at 20:51
did you call `addView(to_load);` ? – FoamyGuy Feb 25 '13 at 14:12
`rl.addView` is the one you need I think based on the code in your question – FoamyGuy Feb 25 '13 at 16:05
yes yes, that's what I have been working with... if I comment the fadeout effect and leave the `rl.addView` I get a partial replace " – Alex Feb 25 '13 at 16:07
is the view `to_load` set to visible ? – FoamyGuy Feb 25 '13 at 16:23

Android switching views

1 Answers1