[Android实例] 仿微信摇一摇功能实现

该篇文章从eoeAndroid搬迁过来的，原文地址：[Android实例] 仿微信摇一摇功能实现

前段时间，由于换了新工作，参与到公司新项目里，很忙，也没时间去弄一些好玩的东西。这些天不算忙，突然想到我在项目里仿照微信做了摇一摇功能，也就吧该功能提取出来，共享给大家。 摇一摇功能其实很简单，主要用到了加速度传感器，因此需要加入权限

<uses-permission android:name="android.permission.VIBRATE"/>

主要代码如下：
1.监听传感器加速变化并进行处理

@Override
    public void onSensorChanged(SensorEvent event) {
        // TODO Auto-generated method stub
        int sensorType = event.sensor.getType();
        // values[0]:X轴，values[1]：Y轴，values[2]：Z轴
        float[] values = event.values;
        if (sensorType == Sensor.TYPE_ACCELEROMETER) {
            if ((Math.abs(values[0]) > 17 || Math.abs(values[1]) > 17 || Math
                    .abs(values[2]) > 17) && !isShake) {
                isShake = true;
                new Thread() {
                    public void run() {
                        try {
                            runOnUiThread(new Runnable() {
                                public void run() {
                                    // 摇动手机后，再伴随震动提示~~
                                    vibrator.vibrate(300);
                                    topLineIv.setVisibility(View.VISIBLE);
                                    bottomLineIv.setVisibility(View.VISIBLE);
                                    startAnimation(false);
                                }
                            });
                            Thread.sleep(500);
                            runOnUiThread(new Runnable() {
                                public void run() {
                                    // 摇动手机后，再伴随震动提示~~
                                    vibrator.vibrate(300);
                                }
                            });
                            Thread.sleep(500);
                            runOnUiThread(new Runnable() {

                                @Override
                                public void run() {
                                    // TODO Auto-generated method stub
                                    isShake = false;
                                    startAnimation(true);
                                }
                            });
                        } catch (InterruptedException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    };
                }.start();
            }
        }
    }

2.动画效果

private void startAnimation(boolean isBack) {
        int type = TranslateAnimation.RELATIVE_TO_SELF;
        float topFromYValue;
        float topToYValue;
        float bottomFromYValue;
        float bottomToYValue;
        if (isBack) {
            topFromYValue = -0.5f;
            topToYValue = 0;
            bottomFromYValue = 0.5f;
            bottomToYValue = 0;
        } else {
            topFromYValue = 0;
            topToYValue = -0.5f;
            bottomFromYValue = 0;
            bottomToYValue = 0.5f;
        }
        TranslateAnimation topAnimation = new TranslateAnimation(type, 0, type,
                0, type, topFromYValue, type, topToYValue);
        topAnimation.setDuration(200);
        topAnimation.setFillAfter(true);
        TranslateAnimation bottomAnimation = new TranslateAnimation(type, 0,
                type, 0, type, bottomFromYValue, type, bottomToYValue);
        bottomAnimation.setDuration(200);
        bottomAnimation.setFillAfter(true);
        if (isBack) {
            bottomAnimation
                    .setAnimationListener(new TranslateAnimation.AnimationListener() {

                        @Override
                        public void onAnimationStart(Animation animation) {
                            // TODO Auto-generated method stub

                        }

                        @Override
                        public void onAnimationRepeat(Animation animation) {
                            // TODO Auto-generated method stub

                        }

                        @Override
                        public void onAnimationEnd(Animation animation) {
                            // TODO Auto-generated method stub
                            topLineIv.setVisibility(View.GONE);
                            bottomLineIv.setVisibility(View.GONE);
                        }
                    });
        }
        bottomLayout.startAnimation(bottomAnimation);
        topLayout.startAnimation(topAnimation);
    }

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