Android8.0 后需要使应用可以安装未知来源应用才可以安装更新包, 做内部更新
设置 res->xml->file_path.xml
- <?xml version="1.0" encoding="utf-8"?>
- <paths>
- <external-path path="Android/data / 此处填写 applicationId(即包名)/" name="files_root" />
- <external-path path="." name="external_storage_root" />
- </paths>
AndroidManifest 文件配置
- <application>
- <provider
- Android:name="android.support.v4.content.FileProvider"
- Android:authorities="此处填写 applicationId(即包名).fileprovider"
- Android:exported="false"
- Android:grantUriPermissions="true">
- <!-- 元数据 -->
- <meta-data
- Android:name="android.support.FILE_PROVIDER_PATHS"
- Android:resource="@xml/file_paths" />
- </provider>
- </application>
新建工具类
- public class InstallAppUtils {
- public static void installApp(Context context , File updateFile) {
- // 核心是下面几句代码
- if (null != updateFile) {
- try {
- Intent intent = new Intent(Intent.ACTION_VIEW);
- // 兼容 7.0
- if (Build.VERSION.SDK_INT>= Build.VERSION_CODES.N) {
- intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
- Uri contentUri = FileProvider.getUriForFile(context, "此处填写 applicationId(即包名).fileprovider", updateFile);
- intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
- // 兼容 8.0
- if (Build.VERSION.SDK_INT>= Build.VERSION_CODES.O) {
- boolean hasInstallPermission = mActivity.getPackageManager().canRequestPackageInstalls();
- if (!hasInstallPermission) {
- ToastUtil.showLong("请在设置界面设置本应用允许安装应用");
- startInstallPermissionSettingActivity(context);
- return;
- }
- }
- } else {
- intent.setDataAndType(Uri.fromFile(updateFile), "application/vnd.android.package-archive");
- intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- }
- if (mActivity.getPackageManager().queryIntentActivities(intent, 0).size()> 0) {
- mActivity.startActivity(intent);
- }
- } catch (Throwable e) {
- e.printStackTrace();
- }
- }
- }
- /**
- * 跳转到设置 - 允许安装未知来源 - 页面
- */
- @RequiresApi(API = Build.VERSION_CODES.O)
- private static void startInstallPermissionSettingActivity(Context context) {
- // 注意这个是 8.0 新 API
- Intent intent = new Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES);
- intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
- mActivity.startActivity(intent);
- }
- }
调用
InstallAppUtils.installApp(context, updateApk)
来源: http://www.jianshu.com/p/e290fd8a1428