Android编程之软件的安装和卸载方法

本文实例讲述了android编程之软件的安装和卸载方法。分享给大家供大家参考，具体如下：

安装：从sdcard

string filename = environment.getexternalstoragedirectory() + "/myapp.apk";
intent intent = new intent(intent.action_view);
intent.setdataandtype(uri.parse("file://" + filepath),"application/vnd.android.package-archive");

或者

//intent.setdataandtype(uri.fromfile(new file(filename)), "application/vnd.android.package-archive");
startactivity(intent);

安装或升级 从网络

intent intent = new intent();
intent.addflags(intent.flag_activity_new_task);
intent.setaction(android.content.intent.action_view);
/* 调用getmimetype()来取得mimetype */
string type = getmimetype(f);
/* 设置intent的file与mimetype */
intent.setdataandtype(uri.fromfile(f),type);
startactivity(intent);

需要的权限

<uses-permission android:name="android.permission.internet"></uses-permission>
<uses-permission android:name="android.permission.install_packages"></uses-permission>
<uses-permission android:name="android.permission.mount_unmount_filesystems"></uses-permission>
<uses-permission android:name="android.permission.write_external_storage"></uses-permission>

卸载

uri packageuri = uri.parse("package:com.android.myapp");
intent uninstallintent = new intent(intent.action_delete, packageuri);
startactivity(uninstallintent);

希望本文所述对大家android程序设计有所帮助。