Updated on 2026-08-14

app/src/main/java/com/tangem/util/CommonUtil.java

@@ -0,0 +1,52 @@
+package com.tangem.util;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.util.Log;
+
+import com.tangem.wallet.R;
+
+import java.io.File;
+import java.util.List;
+
+public class CommonUtil {
+
+    public static void sendEmail(Context context, File zipFile, String logTag, String subject, String text, File[] fileLocations) {
+        if (zipFile != null) return;
+        try {
+            Intent intent = new Intent(Intent.ACTION_SEND)
+                    //.setData(new Uri.Builder().scheme("mailto").build())
+                    .setType("text/plain")
+                    .putExtra(Intent.EXTRA_EMAIL, new String[]{"android@tangem.com"})
+                    .putExtra(Intent.EXTRA_SUBJECT, subject)
+                    .putExtra(Intent.EXTRA_TEXT, text);
+
+            if (fileLocations != null && fileLocations.length > 0) {
+                String[] fileNames = new String[fileLocations.length];
+                for (int i = 0; i < fileLocations.length; i++)
+                    fileNames[i] = fileLocations[i].getAbsolutePath();
+                zipFile = File.createTempFile("tangemLogs", ".zip", fileLocations[0].getParentFile());
+                Compress compress = new Compress(fileNames, zipFile.getAbsolutePath());
+                compress.zip();
+                Log.e(logTag, String.format("Send %d bytes zip with logs", zipFile.length()));
+                Uri attachment = Uri.parse("content://" + context.getString(R.string.log_file_provider_authorities) + "/" + zipFile.getName());
+
+                intent.putExtra(Intent.EXTRA_STREAM, attachment);
+                zipFile.deleteOnExit();
+            }
+
+            List<ResolveInfo> activities = context.getPackageManager().queryIntentActivities(intent, 0);
+            boolean isIntentSafe = activities.size() > 0;
+
+            if (isIntentSafe) {
+                context.startActivity(intent);
+            }
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+}

app/src/main/java/com/tangem/util/Compress.java

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+package com.tangem.util;
+
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class Compress {
+    private static final int BUFFER = 2048;
+
+    private String[] _files;
+    private String _zipFile;
+
+    public Compress(String[] files, String zipFile) {
+        _files = files;
+        _zipFile = zipFile;
+    }
+
+    public void zip() {
+        try {
+            BufferedInputStream origin = null;
+            FileOutputStream dest = new FileOutputStream(_zipFile);
+
+            ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(dest));
+
+            byte data[] = new byte[BUFFER];
+
+            for (String _file : _files) {
+                Log.v("Compress", "Adding: " + _file);
+                FileInputStream fi = new FileInputStream(_file);
+                origin = new BufferedInputStream(fi, BUFFER);
+                ZipEntry entry = new ZipEntry(_file.substring(_file.lastIndexOf("/") + 1));
+                out.putNextEntry(entry);
+                int count;
+                while ((count = origin.read(data, 0, BUFFER)) != -1) {
+                    out.write(data, 0, count);
+                }
+                origin.close();
+            }
+
+            out.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+    }
+}