Read images and display their metadata

app/src/main/java/de/trac/spherical/MainActivity.java

@@ -1,23 +1,82 @@
 package de.trac.spherical;
 
 import android.content.Intent;
+import android.net.Uri;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.util.Log;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
+import de.trac.spherical.parser.SphereParser;
 
 public class MainActivity extends AppCompatActivity {
 
     public static final String TAG = "Spherical";
+    public static final String INTENT_SPHERE = "application/vnd.google.panorama360+jpg";
+
+    private TextView text;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        text = (TextView) findViewById(R.id.hello_world);
 
+        Log.d(TAG, "STARTING");
         Intent intent = getIntent();
-        String action = intent.getAction();
-        String type = intent.getType();
+        Log.d(TAG, "Intent: " + intent.getAction() + " " + intent.getType());
 
-        Log.d(TAG, "Intent: " + action + " " + type);
+        switch (intent.getAction()) {
+            case Intent.ACTION_SEND:
+                handleSentImage(intent);
+            break;
+
+            default:
+                Toast.makeText(this, R.string.prompt_share_image, Toast.LENGTH_LONG).show();
+        }
+    }
+
+    private void handleSentImage(Intent intent) {
+        String type = intent.getType();
+        if (type != null) {
+            switch (type) {
+                case INTENT_SPHERE:
+                    Uri imageUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
+                    if (imageUri != null) {
+                        showImage(imageUri);
+                    }
+
+                Toast.makeText(this, R.string.wow, Toast.LENGTH_LONG).show();
+                    break;
+            }
+        } else {
+            Toast.makeText(this, "LOL", Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    private void showImage(Uri uri) {
+        try {
+            InputStream inputStream = getContentResolver().openInputStream(uri);
+            String xml = SphereParser.getXMLContent(inputStream);
+
+            if (xml != null) {
+                text.setText(xml);
+            } else {
+                text.setText("null");
+            }
+
+        } catch (FileNotFoundException e) {
+            Log.e(TAG, "File not found.", e);
+            Toast.makeText(this, R.string.file_not_found, Toast.LENGTH_SHORT).show();
+        } catch (IOException e) {
+            Log.e(TAG, "IOException: ", e);
+            Toast.makeText(this, R.string.ioerror, Toast.LENGTH_SHORT).show();
+        }
     }
 }

app/src/main/java/de/trac/spherical/parser/SphereParser.java

@@ -102,7 +102,7 @@ public class SphereParser {
         System.out.println(getXMLContent(new FileInputStream(file)));
     }
 
-    public static void unread(ArrayList<Byte> list, PushbackInputStream pb) throws IOException {
+    private static void unread(ArrayList<Byte> list, PushbackInputStream pb) throws IOException {
         for (int i = list.size() - 1; i >= 0; i--) {
             pb.unread(list.get(i));
         }
@@ -114,11 +114,11 @@ public class SphereParser {
         }
     }
 
-    public static String hex(byte[] b) {
+    private static String hex(byte[] b) {
         return new BigInteger(b).toString(16);
     }
 
-    public static int integer(byte[] b) {
+    private static int integer(byte[] b) {
         return new BigInteger(b).intValue();
     }
 }

app/src/main/res/layout/activity_main.xml

@@ -7,6 +7,7 @@
     tools:context="de.trac.spherical.MainActivity">
 
     <TextView
+        android:id="@+id/hello_world"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="Hello World!"

app/src/main/res/values/strings.xml

@@ -1,3 +1,7 @@
 <resources>
     <string name="app_name">Spherical</string>
+    <string name="prompt_share_image">Share an image with the app!</string>
+    <string name="file_not_found">File not found.</string>
+    <string name="ioerror">An Error has occurred: IOError.</string>
+    <string name="wow">WOW! SUCH 3D!!!</string>
 </resources>