赞
踩
根据google官网得知,在8.0以上权限控制的更加严格,应用内安装下载更新的apk都需要申请“安装外面应用”权限才能去安装新应用,如果没有申请否则无法安装。
顺便附上6.0、7.0设备解决方案:
一、设备6.0
- <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
- <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-
- private fun requestPermissions() {
- val permissionsList = arrayListOf(
- Manifest.permission.WRITE_EXTERNAL_STORAGE,
- Manifest.permission.READ_EXTERNAL_STORAGE
- )
- if (ContextCompat.checkSelfPermission(this, permissionsList[0])!= PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(this, permissionsList[1])!= PackageManager.PERMISSION_GRANTED){
- ActivityCompat.requestPermissions(this, permissionsList.toTypedArray(), 100)
- }
- }
-
- override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
- super.onRequestPermissionsResult(requestCode, permissions, grantResults)
- if (grantResults.isNotEmpty() && requestCode == 100) {
- //授权后操作哦
- } else {
- Toast.makeText(this, "请开启相关权限!", Toast.LENGTH_LONG).show()
- }
- }
二、设备7.0 ,在以上代码上新增如下:
1.需要在AndroidManifest.xml中配置FileProvider
- <provider
- android:name="androidx.core.content.FileProvider"
- android:authorities="{包名}.FileProvider"
- android:exported="false"
- android:grantUriPermissions="true">
- <meta-data
- android:name="android.support.FILE_PROVIDER_PATHS"
- android:resource="@xml/file_paths" />
- </provider>
2.xml目录下新建file_paths.xml
- <?xml version="1.0" encoding="utf-8"?>
- <paths>
- <root-path
- name="external_storage_root"
- path="." />
- <root-path
- name="camera_photos"
- path="." />
- <root-path
- name="files_root"
- path="." />
- <root-path
- name="files_root"
- path="." />
- <root-path
- name="external_files"
- path="." />
- </paths>
三、设备8.0+
1.在 AndroidManifest.xml新增权限:
- <!--android O更新了未知来源的权限-->
- <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
四、 打开安装包的代码
- public class InstallUtil {
-
- private Activity mAct;
- private String mPath;//下载下来后文件的路径
- public static int UNKNOWN_CODE = 2018;
-
-
- public InstallUtil(Activity mAct, String mPath) {
- this.mAct = mAct;
- this.mPath = mPath;
- }
-
- public void install() {
- try {
- if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
- startInstallO();
- } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
- startInstallN();
- } else {
- startInstall();
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
-
- /**
- * android1.x-6.x
- */
- public void startInstall() throws Exception {
- Intent install = new Intent(Intent.ACTION_VIEW);
- install.setDataAndType(Uri.parse("file://" + mPath), "application/vnd.android.package-archive");
- install.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- mAct.startActivity(install);
- }
-
- /**
- * android7.x
- */
- public void startInstallN() throws Exception {
- //参数1 上下文, 参数2 在AndroidManifest中的android:authorities值, 参数3 共享的文件
- Uri apkUri = FileProvider.getUriForFile(mAct, getAuthority(mAct, ".FileProvider"), new File(mPath));
- Intent install = new Intent(Intent.ACTION_VIEW);
- //由于没有在Activity环境下启动Activity,设置下面的标签
- install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- //添加这一句表示对目标应用临时授权该Uri所代表的文件
- install.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
- install.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
- install.setDataAndType(apkUri, "application/vnd.android.package-archive");
- mAct.startActivity(install);
- }
-
- /**
- * android8.x
- */
- @RequiresApi(api = Build.VERSION_CODES.O)
- private void startInstallO() throws Exception {
-
- boolean isGranted = mAct.getPackageManager().canRequestPackageInstalls();
- if (isGranted) {
- startInstallN();//安装应用的逻辑(写自己的就可以)
- } else {
- new AlertDialog.Builder(mAct)
- .setCancelable(false)
- .setTitle("安装应用需要打开未知来源权限,请去设置中开启权限")
- .setPositiveButton("确定", new DialogInterface.OnClickListener() {
- @Override
- public void onClick(DialogInterface d, int w) {
- //https://blog.csdn.net/changmu175/article/details/78906829
- Uri packageURI = Uri.parse("package:" + mAct.getPackageName());
- //注意这个是8.0新API
- Intent intent = new Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES, packageURI);
- mAct.startActivityForResult(intent, INSTALL_PERMISS_CODE);
- }
- })
- .show();
- }
- }
-
-
- /**
- * 获取FileProvider
- * 返回: "此处为你的包名.FileProvider"
- * china.test.provider
- */
- private String getAuthority(Context context, String authority) {
-
- return getAppProcessName(context) + authority;
- }
-
- /**
- * 获取当前应用程序的包名
- *
- * @param context 上下文对象
- * @return 返回包名
- */
- private String getAppProcessName(Context context) {
- //当前应用pid
- int pid = android.os.Process.myPid();
- //任务管理类
- ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
- //遍历所有应用
- List<ActivityManager.RunningAppProcessInfo> infos = manager.getRunningAppProcesses();
- for (ActivityManager.RunningAppProcessInfo info : infos) {
- if (info.pid == pid)//得到当前应用
- {
- return info.processName;//返回包名
- }
- }
- return "";
- }
- }
五、运行后发现还是有问题、安装失败
在app.gradle中添加signingConfigs配置,这样在不打包的前提下也可以安装成功啦!
-
- android {
-
- defaultConfig { … }
- signingConfigs {
- debug {
- storeFile file("./xxx.keystore")
- storePassword 'password'
- keyAlias 'xxx'
- keyPassword 'password'
- }
- release {
- storeFile file("./xxx.keystore")
- storePassword 'password'
- keyAlias 'xxx'
- keyPassword 'password'
- v2SigningEnabled false
- }
- }
参考文献:
android 6.0以上系统部分需要动态授权代码_一直向钱的博客-CSDN博客
Android8.0+应用内更新安装apk失败_fplei的博客-CSDN博客
android 7.0、8.0、9.0适配时遇到更新安装问题解决_Bentley_li的博客-CSDN博客
Android8.0 允许安装未知来源权限(一)_飞奔的小付的博客-CSDN博客
记 Android 7.0 8.0版本更新安装遇到的坑 - 简书
android 调用系统播放器播放视频,适配android 7.0以上_书中有颜如玉的博客-CSDN博客_android 调用系统播放器
Copyright © 2003-2013 www.wpsshop.cn 版权所有,并保留所有权利。