给程序添加皮肤的两张方法。动态加载皮肤，可以随意改变外观。-To add two methods of skin. Dynamic loading skin can change the appearance.

Simple android application to measure strength and GPS location of nearby hotspots-Simple android application to measure strength and GPS location of nearby hotspots

经验模态分解 小波变换 经验小波等信号处理方法，亲测可用(Empirical mode decomposition, wavelet transform, empirical wavelet and other signal processing methods, pro test can be used)

经验小波变换，将信号分解为多个子特征的子序列。性能较EMD、EEMD、WD等有所提升。(Empirical wavelet transform decomposes the signal into sub sequences of multiple sub features. The performance is improved compared with EMD, EEMD, WD and so on.)