Füge Auto-Update für höhere Android-Versionen hinzu

app/src/main/java/com/cyb3rko/techniklogger/UpdateUtils.kt

@@ -68,6 +68,6 @@ private fun downloadApk(context: Context, newestVersion: String) {
         val link = "https://cdn.cyb3rko.de/Apps/Technik-Logger/Technik-Logger%20v$newestVersion.apk"
         DownloadApk(context).startDownloadingApk(link)
     } else {
-        Toasty.error(context, "Fehlende Berechtigung, erteilen Sie diese beim nächsten App-Start", Toasty.LENGTH_LONG).show()
+        Toasty.error(context, "Fehlende Berechtigung, erteile diese beim nächsten App-Start", Toasty.LENGTH_LONG).show()
     }
 }

installer/build.gradle

@@ -10,8 +10,8 @@ android {
     defaultConfig {
         minSdkVersion 19
         targetSdkVersion 30
-        versionCode 1
-        versionName "1.0"
+        versionCode 2
+        versionName "1.1"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles "consumer-rules.pro"

installer/src/main/java/com/cyb3rko/installer/DownloadApk.java

@@ -11,20 +11,18 @@ import android.os.Environment;
 import android.util.Log;
 import android.widget.Toast;
 import androidx.core.content.FileProvider;
-
 import java.io.File;
 import java.io.FileOutputStream;
-import java.io.IOException;
 import java.io.InputStream;
 import java.net.HttpURLConnection;
 import java.net.MalformedURLException;
 import java.net.URL;
 
-public class DownloadApk extends Activity{
-    private static ProgressDialog bar;
+public class DownloadApk extends Activity {
     private static Context context;
     private static String downloadUrl;
     private static String fileName;
+    private static final String TAG = "DownloadApk";
 
     public DownloadApk(Context context){
         DownloadApk.context = context;
@@ -32,22 +30,27 @@ public class DownloadApk extends Activity{
 
     public void startDownloadingApk(String url){
         downloadUrl = url;
-        System.out.println(downloadUrl);
         fileName = url.split("Technik-Logger/")[1].replace("%20", " ");
-        System.out.println(fileName);
-        if (downloadUrl!=null){
-            new DownloadNewVersion().execute();
+        if (downloadUrl != null){
+            new DownloadNewVersion(context).execute();
         }
     }
 
     private static class DownloadNewVersion extends AsyncTask<String, Integer, Boolean> {
+        private ProgressDialog bar;
+        private final Context context;
+
+        DownloadNewVersion(Context context) {
+            this.context = context;
+        }
+
         @Override
         protected void onPreExecute() {
             super.onPreExecute();
-            if(bar==null){
+            if (bar == null){
                 bar = new ProgressDialog(context);
                 bar.setCancelable(false);
-                bar.setMessage("Downloading...");
+                bar.setMessage("Lädt herunter...");
                 bar.setIndeterminate(true);
                 bar.setCanceledOnTouchOutside(false);
                 bar.show();
@@ -60,45 +63,53 @@ public class DownloadApk extends Activity{
             bar.setMax(100);
             bar.setProgress(progress[0]);
             String msg = "";
-            if (progress[0]>99) {
-                msg="Finishing... ";
+            if (progress[0] > 99) {
+                msg = "Beenden... ";
             } else {
-                msg="Downloading... "+progress[0]+"%";
+                msg = "Herunterladen... " + progress[0] + "%";
             }
             bar.setMessage(msg);
         }
 
         @Override
         protected void onPostExecute(Boolean result) {
-            // TODO Auto-generated method stub
             super.onPostExecute(result);
-            if (bar.isShowing() && bar!=null) {
+            if (bar.isShowing() && bar != null) {
                 bar.dismiss();
-                bar=null;
+                bar = null;
             }
 
-            if (result){
-                Toast.makeText(context,"Update Done", Toast.LENGTH_SHORT).show();
+            if (result) {
+                Toast.makeText(context,"Download erfolgreich", Toast.LENGTH_SHORT).show();
             } else {
-                Toast.makeText(context,"Error: Try Again", Toast.LENGTH_SHORT).show();
+                Toast.makeText(context,"Download fehlgeschlagen", Toast.LENGTH_SHORT).show();
             }
         }
 
         @Override
         protected Boolean doInBackground(String... arg0) {
-            Boolean flag = false;
+            boolean flag = false;
             try {
+                String destination = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).toString() + "/";
+                File outputFile = new File(destination + fileName);
+                if (outputFile.exists()) {
+                    try {
+                        openNewVersion(outputFile.getPath());
+                        return true;
+                    } catch (Exception ignored) {
+                    }
+                }
+                outputFile.createNewFile();
+
+                File directory = new File(destination);
+                if (!directory.exists()) {
+                    directory.mkdirs();
+                }
+
                 URL url = new URL(downloadUrl);
                 HttpURLConnection c = (HttpURLConnection) url.openConnection();
                 c.setRequestMethod("GET");
                 c.connect();
-                String PATH = Environment.getExternalStorageDirectory()+"/Download/";
-                File file = new File(PATH);
-                File outputFile = new File(file, fileName);
-
-                if(outputFile.exists()){
-                    outputFile.delete();
-                }
 
                 FileOutputStream fos = new FileOutputStream(outputFile);
                 InputStream is = c.getInputStream();
@@ -109,7 +120,7 @@ public class DownloadApk extends Activity{
                 byte[] buffer = new byte[1024];
                 int len1;
                 int per;
-                int downloaded=0;
+                int downloaded = 0;
                 while ((len1 = is.read(buffer)) != -1) {
                     fos.write(buffer, 0, len1);
                     downloaded += len1;
@@ -118,33 +129,33 @@ public class DownloadApk extends Activity{
                 }
                 fos.close();
                 is.close();
-                openNewVersion(PATH);
+                openNewVersion(outputFile.getPath());
                 flag = true;
             } catch (MalformedURLException e) {
-                String TAG = "DownloadApk";
-                Log.e(TAG, "Update Error: " + e.getMessage());
+                Log.e(TAG, "Update-Fehler: " + e.getMessage());
                 flag = false;
-            } catch (IOException ex) {
-                ex.printStackTrace();
+            } catch (Exception e) {
+                e.printStackTrace();
+                Log.e(TAG, "Update-Fehler: " + e.getMessage());
             }
             return flag;
         }
     }
 
-    private static void openNewVersion(String location) {
+    private static void openNewVersion(String filePath) {
         Intent intent = new Intent(Intent.ACTION_VIEW);
-        intent.setDataAndType(getUriFromFile(location), "application/vnd.android.package-archive");
+        intent.setDataAndType(getUriFromFile(filePath), "application/vnd.android.package-archive");
         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
         context.startActivity(intent);
     }
 
-    private static Uri getUriFromFile(String location) {
-        if (Build.VERSION.SDK_INT<24) {
-            return Uri.fromFile(new File(location + fileName));
+    private static Uri getUriFromFile(String filePath) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
+            return Uri.fromFile(new File(filePath));
         } else {
             return FileProvider.getUriForFile(context, context.getApplicationContext().getPackageName() + ".provider",
-                    new File(location + fileName));
+                    new File(filePath));
         }
     }
 }