#150. Implement delete backup listener.

Author: Evgenii Kanivets

app/src/main/java/com/blogspot/e_kanivets/moneytracker/activity/external/BackupActivity.java

@@ -24,9 +24,10 @@
 import butterknife.BindView;
 import butterknife.OnClick;
 import butterknife.OnItemClick;
+import org.jetbrains.annotations.NotNull;
 import timber.log.Timber;
 
-public class BackupActivity extends BaseBackActivity {
+public class BackupActivity extends BaseBackActivity implements BackupAdapter.OnBackupListener {
     private static final String APP_KEY = "5lqugcckdy9y6lj";
 
     @Inject PreferenceController preferenceController;
@@ -77,6 +78,19 @@ public class BackupActivity extends BaseBackActivity {
         }
     }
 
+    @Override public void onBackupDelete(@NotNull final String backupName) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(BackupActivity.this);
+        builder.setTitle(getString(R.string.delete_backup_title));
+        builder.setMessage(getString(R.string.delete_backup_message, backupName));
+        builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+            @Override public void onClick(DialogInterface dialog, int which) {
+                deleteBackup(backupName);
+            }
+        });
+        builder.setNegativeButton(android.R.string.cancel, null);
+        builder.show();
+    }
+
     @OnClick(R.id.btn_backup_now) public void backupNow() {
         AnswersProxy.get().logButton("Make Backup");
         startProgress(getString(R.string.making_backup));
@@ -163,11 +177,18 @@ private void fetchBackups() {
                 if (isFinishing()) return;
 
                 stopProgress();
-                listView.setAdapter(new BackupAdapter(BackupActivity.this, backupList));
+
+                BackupAdapter backupAdapter = new BackupAdapter(BackupActivity.this, backupList);
+                backupAdapter.setOnBackupListener(BackupActivity.this);
+                listView.setAdapter(backupAdapter);
             }
         });
     }
 
+    private void deleteBackup(String backupName) {
+
+    }
+
     private void logout() {
         preferenceController.writeDropboxAccessToken(null);
         Auth.startOAuth2Authentication(BackupActivity.this, APP_KEY);

app/src/main/java/com/blogspot/e_kanivets/moneytracker/adapter/BackupAdapter.kt

@@ -6,10 +6,13 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.BaseAdapter
 import com.blogspot.e_kanivets.moneytracker.R
+import kotlinx.android.synthetic.main.view_backup_item.view.ivDelete
 import kotlinx.android.synthetic.main.view_backup_item.view.tvTitle
 
 class BackupAdapter(private val context: Context, private val backups: List<String>) : BaseAdapter() {
 
+    var onBackupListener: OnBackupListener? = null
+
     override fun getView(position: Int, convertView: View?, parent: ViewGroup?): View {
         var view = convertView
         val viewHolder: ViewHolder?
@@ -25,7 +28,10 @@ class BackupAdapter(private val context: Context, private val backups: List<Stri
             viewHolder = view.tag as ViewHolder
         }
 
-        viewHolder.view.tvTitle.text = getItem(position)
+        val backupItem = getItem(position)
+
+        viewHolder.view.tvTitle.text = backupItem
+        viewHolder.view.ivDelete.setOnClickListener { onBackupListener?.onBackupDelete(backupItem) }
 
         return view!!
     }
@@ -38,4 +44,8 @@ class BackupAdapter(private val context: Context, private val backups: List<Stri
 
     private data class ViewHolder(val view: View)
 
+    interface OnBackupListener {
+        fun onBackupDelete(backupName: String)
+    }
+
 }

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

@@ -17,10 +17,12 @@
       />
 
   <ImageView
+      android:id="@+id/ivDelete"
       android:layout_width="24dp"
       android:layout_height="24dp"
+      android:contentDescription="@string/delete"
       android:src="@drawable/ic_delete"
-      android:tint="@color/text_grey"
+      android:tint="@color/dark_grey"
       />
 
 </LinearLayout>

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

@@ -1,28 +1,29 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="white">#ffffff</color>
-    <color name="grey_inactive">#E0E0E0</color>
+  <color name="white">#ffffff</color>
+  <color name="grey_inactive">#E0E0E0</color>
 
-    <color name="white_green">#f1f8e9</color>
-    <color name="green_light">#8bc34a</color>
-    <color name="green">#689f38</color>
-    <color name="green_dark">#33691e</color>
+  <color name="white_green">#f1f8e9</color>
+  <color name="green_light">#8bc34a</color>
+  <color name="green">#689f38</color>
+  <color name="green_dark">#33691e</color>
 
-    <color name="white_red">#ffebee</color>
-    <color name="red_light">#f44336</color>
-    <color name="red">#d32f2f</color>
-    <color name="red_dark">#b71c1c</color>
+  <color name="white_red">#ffebee</color>
+  <color name="red_light">#f44336</color>
+  <color name="red">#d32f2f</color>
+  <color name="red_dark">#b71c1c</color>
 
-    <color name="light_grey">#f6f6f6</color>
+  <color name="light_grey">#f6f6f6</color>
+  <color name="dark_grey">#8A000000</color>
 
-    <color name="yellow_light">#ffbd21</color>
-    <color name="yellow_dark">#ff8a00</color>
+  <color name="yellow_light">#ffbd21</color>
+  <color name="yellow_dark">#ff8a00</color>
 
-    <color name="text_white">#ffffffff</color>
-    <color name="text_black">#de000000</color>
-    <color name="text_grey">#8A000000</color>
+  <color name="text_white">#ffffffff</color>
+  <color name="text_black">#de000000</color>
+  <color name="text_grey">#8A000000</color>
 
-    <color name="background_white">#ffffff</color>
+  <color name="background_white">#ffffff</color>
 
-    <color name="divider_grey">#20000000</color>
+  <color name="divider_grey">#20000000</color>
 </resources>