手机用 安装 和软件的版本

private String getVersionName() {
PackageManager manager = getPackageManager();
try {
PackageInfo info = manager.getPackageInfo(getPackageName(), 0);
return info.versionName;
} catch (NameNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return "";
}
}

}

 /**
                           * 安裝apk
                           * @param t
                           */
private void installApk(File t) {
// TODO Auto-generated method stub
Intent intent=new Intent();
intent.setAction("android.intent.action.VIEW");
intent.setDataAndType(Uri.fromFile(t), "application/vnd.android.package-archive");
startActivity(intent);
}