Android Open Source - DreamInTweets Jumper

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License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (C) 2012 The Android Open Source Project
 */*from   w w w . j  a v a  2  s  . c om*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package nz.net.speakman.android.dreamintweets.daydream;


import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.FrameLayout;

/*
 * https://code.google.com/p/android-daydream-samples/source/browse/jumper/src/com/android/daydream/jumper/Jumper.java
 */
public class Jumper extends FrameLayout {
    public static final int MOVE = 1;

    Runnable mRunnable = new Runnable() {
        public void run() {
            final View parent = (View) getParent();
            if (parent == null) return;

            // reposition in parent using setX() and setY()
            final float width = getMeasuredWidth();
            final float height = getMeasuredHeight();
            final float parentw = parent.getMeasuredWidth();
            final float parenth = parent.getMeasuredHeight();
            setX((float) Math.random() * (parentw - width));
            setY((float) Math.random() * (parenth - height));

            postDelayed(this, 2000); // let?s do this again, soon
        }
    };

    public Jumper(Context context) {
        super(context);
    }

    public Jumper(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public Jumper(Context context, AttributeSet attrs, int flags) {
        super(context, attrs, flags);
    }

    @Override
    public void onAttachedToWindow() {
        getHandler().post(mRunnable);
    }
}

Java Source Code List