Install app automatically in android 7 or higher

Question

I want to install app in my projects. But my code don't work in api 24 or higher. What is its solution?

My code is:

String timestamp = new SimpleDateFormat("yyyy.MM.dd.HH.mm.ss").format(new Date());
String dir = Environment.getExternalStorageDirectory() + "/" + context.getResources().getString(R.string.cache_path);
String appName = appModel.getAppUrl().substring(appModel.getAppUrl().lastIndexOf('/') + 1, appModel.getAppUrl().length());
appName = timestamp + "_" + appName;

 private void appInstaller(String dir, String appName) {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
            File file = new File(dir, appName);
            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
            startActivity(intent);
        } else {
            Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            intent.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory() + "/" + dir + "/" + appName)), "application/vnd.android.package-archive");
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        }
    }

Manifest:

 <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />

This question is like my question. But does not work its solution for me!

Thanks about to help me!

"it doesn't work" is kinda generic. Does it throw any error? or it simply run through your code without doing anything? You have any "unusual" log in your console? Check [this](https://stackoverflow.com/a/4604922/4700782) answer — Pier Giorgio Misley, Nov 20 '19 at 08:39
how exactly is it not working? It also should not install apps, but only prompt the user to install them. — Vladyslav Matviienko, Nov 20 '19 at 08:47
Its log is: `file:///storage/emulated/0/ARMarket/2019.11.21.07.09.51_oloom1.apk exposed beyond app through Intent.getData() E/EGL_emulation: tid 2952: eglSurfaceAttrib(1354): error 0x3009 (EGL_BAD_MATCH)` I don't know that it doesn't work!? — Ehsan Kalali, Nov 21 '19 at 12:12

Ehsan Kalali · Accepted Answer · 2019-12-12T15:45:29.833

I resolved this problem and this way is true for me: First:

private static final String APP_DIR = Environment.getExternalStorageDirectory().getAbsolutePath() + "/MyAppFolderInStorage/";

private void install() {
    File file = new File(APP_DIR + fileName);

    if (file.exists()) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        String type = "application/vnd.android.package-archive";

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            Uri downloadedApk = FileProvider.getUriForFile(getContext(), "ir.greencode", file);
            intent.setDataAndType(downloadedApk, type);
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        } else {
            intent.setDataAndType(Uri.fromFile(file), type);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        }

        getContext().startActivity(intent);
    } else {
        Toast.makeText(getContext(), "ّFile not found!", Toast.LENGTH_SHORT).show();
    }
}

Second: For android 7 and above you should define a provider in manifest like below!

<provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="ir.greencode"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/paths" />
    </provider>

Third: Define path.xml in res/xml folder like below! I'm using this path for internal storage if you want to change it to something else there is a few way! You can go to this FileProvider

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path name="your_folder_name" path="MyAppFolderInStorage/"/>
</paths>

Forth: You should add this permission in manifest:

<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>

Install app automatically in android 7 or higher

1 Answers1