Unable To Open The Pdf In Android

I am new in android and working on one android project in which I have to display a chosen pdf from the device either from internal storage(Priority) or from external Storage. I am

Solution 1:

You should create a Provider Class and extends with FileProvider. and register in manifest and also if you using targetSdkVersion 29 add this permission AndroidManifest.xmlandroid:requestLegacyExternalStorage="true"

<providerandroid:authorities="androidx.core.content.FileProvider"android:exported="false"android:grantUriPermissions="true"android:name=".provider.GenericFileProvider"><meta-dataandroid:name="android.support.FILE_PROVIDER_PATHS"android:resource="@xml/provider_paths"/></provider>

And add a provider_paths.xml file in xml folder :

<?xml version="1.0" encoding="utf-8"?><pathsxmlns:android="http://schemas.android.com/apk/res/android"><external-pathname="external_files"path="."/></paths>

And use this method

publicstaticvoid openFile(Context context, File file) {
    Uri path = GenericFileProvider.getUriForFile(context, BuildConfig.APPLICATION_ID + ".provider", file);
    Intent intent = new Intent(Intent.ACTION_VIEW);
    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
    intent.setDataAndType(path, "application/pdf);
    try {
        context.startActivity(intent);
    } catch (ActivityNotFoundException e) {

    }
}

I hope this will help you.

Solution 2:

Follow below steps:

Step - 1: Create provider_paths.xml in your xml directory

<?xml version="1.0" encoding="utf-8"?><pathsxmlns:android="http://schemas.android.com/apk/res/android"><external-pathname="external_files"path="."/></paths>

Step - 2: Add FileProvider in your AndroidManifest.xml file

<providerandroid:name="androidx.core.content.FileProvider"android:authorities="${applicationId}.provider"android:exported="false"android:grantUriPermissions="true"><meta-dataandroid:name="android.support.FILE_PROVIDER_PATHS"android:resource="@xml/provider_paths" /></provider>

Step - 3: Since your file is in internal/external storage use getExternalStorageDirectory()

Filefile=newFile(Environment.getExternalStorageDirectory().getAbsolutePath(), filename);

Uripath= FileProvider.getUriForFile(this, BuildConfig.APPLICATION_ID + ".provider", file);

Intenttarget=newIntent(Intent.ACTION_VIEW);
target.setDataAndType(path, "application/pdf");
target.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
target.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
Intentintent= Intent.createChooser(target, "Open File");
try {
    startActivity(intent);
} catch (ActivityNotFoundException e) {
    Toast.makeText(getActivity(), "Please install some pdf viewer app", Toast.LENGTH_LONG).show();
}