打算安装APK文件-Android牛轧糖

Question

I searched extensively and did not find the problem. When you try to install an APK file using an Intent in Android Nougat , it simply does not install and displays the following warning: "There was a problem parsing the package".

It works perfectly to open PDF files, for example, with settings to open this type of file (. PDF ). However to install . apk files does not work.

LogCat does not show any errors and I can not reach any solution.

What could be wrong?

The following code:

Manifest :

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INSTALL_PACKAGES" />

<provider
        android:name="android.support.v4.content.FileProvider"
        android:authorities="br.com.xxxxxx.xxxxxx.fileprovider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/filepaths"/>
    </provider>

xml/filepaths:

<paths xmlns:android="http://schemas.android.com/apk/res/android">
<files-path name="storage/emulated/0" path="."/>

Activity:

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        try {
            Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
            File file = new File(getContext().getFilesDir(), "app-debug.apk");
            Uri uri = FileProvider.getUriForFile(getContext(), BuildConfig.APPLICATION_ID + ".fileprovider", file);

            intent.setDataAndType(uri, "application/vnd.android.package-archive");
            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            startActivity(intent);
            finish();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }else{
        try {
            Intent intent = new Intent(Intent.ACTION_VIEW);
            File file = new File(Environment.getExternalStorageDirectory() + "/app-debug.apk");

            intent.setAction(android.content.Intent.ACTION_VIEW);
            intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            startActivity(intent);
            finish();
        } catch (Exception e) {
            e.getMessage();
        }
    }

Please, what could be wrong with this code? Can someone help me?

Answer 1

I had to change the intent for N (and higher) and remove the type designation. Once I did that the install worked as expected.

So for N:

Intent intent = new Intent(Intent.ACTION_INSTALL_PACKAGE);
File file = new File(getContext().getFilesDir(), "app-debug.apk");
Uri uri = FileProvider.getUriForFile(getContext(), BuildConfig.APPLICATION_ID + ".fileprovider", file);
intent.setData(uri)
intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(intent);
finish();