可以从自定义Android应用程序中以编程方式安装动态下载的apk。
当前回答
首先在AndroidManifest.xml中添加以下行:
<uses-permission android:name="android.permission.INSTALL_PACKAGES"
tools:ignore="ProtectedPermissions" />
然后使用以下代码安装apk:
File sdCard = Environment.getExternalStorageDirectory();
String fileStr = sdCard.getAbsolutePath() + "/MyApp";// + "app-release.apk";
File file = new File(fileStr, "TaghvimShamsi.apk");
Intent promptInstall = new Intent(Intent.ACTION_VIEW).setDataAndType(Uri.fromFile(file),
"application/vnd.android.package-archive");
startActivity(promptInstall);
其他回答
只是一个扩展,如果有人需要一个库,那么这可能会有所帮助。感谢Raghav
试试这个
String filePath = cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_FILENAME));
String title = filePath.substring( filePath.lastIndexOf('/')+1, filePath.length() );
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File(filePath)), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // without this flag android returned a intent error!
MainActivity.this.startActivity(intent);
It's worth noting that if you use the DownloadManager to kick off your download, be sure to save it to an external location e.g. setDestinationInExternalFilesDir(c, null, "<your name here>).apk";. The intent with a package-archive type doesn't appear to like the content: scheme used with downloads to an internal location, but does like file:. (Trying to wrap the internal path into a File object and then getting the path doesn't work either, even though it results in a file: url, as the app won't parse the apk; looks like it must be external.)
例子:
int uriIndex = cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI);
String downloadedPackageUriString = cursor.getString(uriIndex);
File mFile = new File(Uri.parse(downloadedPackageUriString).getPath());
Intent promptInstall = new Intent(Intent.ACTION_VIEW)
.setDataAndType(Uri.fromFile(mFile), "application/vnd.android.package-archive")
.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
appContext.startActivity(promptInstall);
我只是想分享一个事实,我的apk文件保存到我的应用程序“数据”目录,我需要更改apk文件的权限,使其成为世界可读的,以便允许它以这种方式安装,否则系统会抛出“解析错误:解析包存在问题”;所以使用@Horaceman的解决方案,使:
File file = new File(dir, "App.apk");
file.setReadable(true, false);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
startActivity(intent);
您可以轻松启动市场链接或安装提示:
Intent promptInstall = new Intent(Intent.ACTION_VIEW)
.setDataAndType(Uri.parse("file:///path/to/your.apk"),
"application/vnd.android.package-archive");
startActivity(promptInstall);
源
Intent goToMarket = new Intent(Intent.ACTION_VIEW)
.setData(Uri.parse("market://details?id=com.package.name"));
startActivity(goToMarket);
源
但是,没有用户的明确许可,你不能安装。apks;除非设备和您的程序已经扎根。
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