android摇一摇实现(仿微信)

 这个demo模仿的是微信的摇一摇,是一个完整的demo,下载地址在最下面.下面是demo截图:

               

步驟:

1.手机摇动监听,首先要实现传感器接口SensorEventListener.

    /**开始重力传感器的检测*/
    public void start() {
        // 获得传感器管理器
       SensorManager sensorManager = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);
        if (sensorManager != null) {
            // 获得重力传感器
            sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        }
        // 注册
        if (sensor != null) {
            sensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_GAME);
        }
    }

2.启动手掌开合动画,这个手掌其实是上下两部分组成的,分别开启一个上下垂直动画.

    /** 摇一摇手掌上部分动画 */
    public AnimationSet getUpAnim(Handler handler) {
        AnimationSet animup = new AnimationSet(true);
        TranslateAnimation mytranslateanimup0 = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF,
                -0.8f);
        mytranslateanimup0.setDuration(OPEN_TIME);
        mytranslateanimup0.setAnimationListener(getLineVisibleListener(handler));

        TranslateAnimation mytranslateanimup1 = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF,
                +0.8f);
        mytranslateanimup1.setDuration(CLOSE_TIME);
        mytranslateanimup1.setStartOffset(OFFSET_TIME);
        mytranslateanimup1.setInterpolator(new AccelerateInterpolator(1));
        mytranslateanimup1.setAnimationListener(getLineGoneListener(handler));

        animup.addAnimation(mytranslateanimup0);
        animup.addAnimation(mytranslateanimup1);
        return animup;
    }

    /** 摇一摇手掌下部分动画 */
    public AnimationSet getDownAnim() {
        AnimationSet animdn = new AnimationSet(true);
        TranslateAnimation mytranslateanimdn0 = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF,
                +0.8f);
        mytranslateanimdn0.setDuration(OPEN_TIME);
        TranslateAnimation mytranslateanimdn1 = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF, 0f, Animation.RELATIVE_TO_SELF,
                -0.8f);
        mytranslateanimdn1.setDuration(CLOSE_TIME);
        mytranslateanimdn1.setStartOffset(OFFSET_TIME);
        mytranslateanimdn1.setInterpolator(new AccelerateInterpolator(1));
        animdn.addAnimation(mytranslateanimdn0);
        animdn.addAnimation(mytranslateanimdn1);
        return animdn;
    }

3.结果页动画,重新摇一摇时,也会启动一个动画将结果页移动到最下方然后消失.就跟微信摇到了人以后,弹出的个人信息卡一样.

demo下载地址:http://files.cnblogs.com/files/wangyuehome/Shake.zip