https://www.cnblogs.com/zhi-leaf/p/10418222.html
1. keytool 如何查看APK簽名文件的簽名信息(MD5 SHA1值)
https://blog.csdn.net/xue_tianyou/article/details/82014919
https://www.cnblogs.com/zhi-leaf/p/10418222.html
1. keytool 如何查看APK簽名文件的簽名信息(MD5 SHA1值)
https://blog.csdn.net/xue_tianyou/article/details/82014919
1, 創建類,繼承ContentProvider抽象類 boolean onCreate() Cursor query(Uri,String[],String,String