参考地址
接上文： 几个错误解决如下
1.Adding support for Java 8 language features could solve this issue.
kotlinOptions { jvmTarget = 1.8}
2. 文件的copy 与命名
工具类FileUtils
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
/**
* @author as752497576@gmail.com
* @description
* @time 2023/3/12
*/
public class FileUtils {
/**
* 创建文件夹
*/
public static boolean createDirs(String dirPath) {
File file = new File(dirPath);
if (!file.exists() || !file.isDirectory()) {
return file.mkdirs();
}
return true;
}
/**
* 文件的复制操作方法
*
* @param fromFile 准备复制的文件
* @param toFile 要复制的文件的目录
*/
public static void copyfile(File fromFile, File toFile) {
if (!fromFile.exists()) {
return;
}
if (!fromFile.isFile()) {
return;
}
if (!fromFile.canRead()) {
return;
}
if (!toFile.getParentFile().exists()) {
toFile.getParentFile().mkdirs();
}
if (toFile.exists()) {
toFile.delete();
}
try {
FileInputStream fosfrom = new FileInputStream(fromFile);
FileOutputStream fosto = new FileOutputStream(toFile);
byte[] bt = new byte[1024];
int c;
while ((c = fosfrom.read(bt)) > 0) {
fosto.write(bt, 0, c);
}
//关闭输入、输出流
fosfrom.close();
fosto.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 重命名文件
*
* @param oldPath 原来的文件地址
* @param newPath 新的文件地址
*/
public static void renameFile(String oldPath, String newPath) {
File oleFile = new File(oldPath);
File newFile = new File(newPath);
//执行重命名
oleFile.renameTo(newFile);
}
/**
* 删除文件夹
*
* @return boolean
*/
public static void delFolder(String folderPath) {
try {
delAllFile(folderPath); //删除完里面所有内容
String filePath = folderPath;
filePath = filePath.toString();
File myFilePath = new File(filePath);
myFilePath.delete(); //删除空文件夹
} catch (Exception e) {
System.out.println("删除文件夹操作出错");
e.printStackTrace();
}
}
/**
* 删除文件夹里面的所有文件
*
* @param path String 文件夹路径 如 c:/fqf
*/
public static void delAllFile(String path) {
File file = new File(path);
if (!file.exists()) {
return;
}
if (!file.isDirectory()) {
return;
}
String[] tempList = file.list();
File temp = null;
for (int i = 0; i < tempList.length; i++) {
if (path.endsWith(File.separator)) {
temp = new File(path + tempList[i]);
} else {
temp = new File(path + File.separator + tempList[i]);
}
if (temp.isFile()) {
temp.delete();
}
if (temp.isDirectory()) {
delAllFile(path + "/" + tempList[i]);//先删除文件夹里面的文件
delFolder(path + "/" + tempList[i]);//再删除空文件夹
}
}
}
}
val fileName ="huipijiang" +".apk"
val cacheDir = BaseApplication.mContext.getDownLoadPath()
FileUtils.createDirs(cacheDir)
var path = File(cacheDir + File.separator + fileName)
FileUtils.copyfile(resource,path )
FileUtils.renameFile(resource.toString(),path.toString() )
FileUtils.delFolder(resource.toString()); // 删除下载的文件
SilentInstall.install(File(cacheDir + File.separator + fileName),BaseApplication.getContext()) //安装apk
getDownLoadPath（）代码
fun getDownLoadPath(): String {
return if (Build.VERSION.SDK_INT >29) {
getExternalFilesDir(null)?.absolutePath + File.separator +"BifrostApkDownload"
}else {
Environment.getExternalStorageDirectory().absolutePath + File.separator +"BifrostApkDownload"
}
}
安装代码：
Intent intent =new Intent(Intent.ACTION_VIEW);
intent.setAction(Intent.ACTION_VIEW);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addCategory(Intent.CATEGORY_DEFAULT);
Uri uri;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
uri = FileProvider.getUriForFile(context, context.getApplicationContext().getPackageName() +".fileProvider", apk);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
}else {
uri = Uri.fromFile(apk);
}
intent.setDataAndType(uri, "application/vnd.android.package-archive");
context.startActivity(intent);
