Fix lint warnings (#319)

* Fix lint errors/warnings

Fix a lot of lint errors and warnings.
Most things are automatically applied fixes done with android studio:

* externalize strings
* remove unused code / classes / layouts / imports
* migrate some fields to local variables

* Remove dead code from comments

Removed code that is commented out long ago.

* remove unused resources

* colors
* strings
* drawables
* layouts
* menus

1 files changed, 0 insertions, 44 deletions

diff --git a/app/src/main/res/layout/key_id.xml b/app/src/main/res/layout/key_id.xml
deleted file mode 100644
index 2c95ce8d..00000000
--- a/app/src/main/res/layout/key_id.xml
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical" android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingLeft="@dimen/activity_horizontal_margin"
-    android:paddingRight="@dimen/activity_horizontal_margin"
-    android:paddingTop="@dimen/activity_vertical_margin"
-    android:paddingBottom="@dimen/activity_vertical_margin"
-    android:background="@color/background">
-
-    <GridLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:background="@drawable/rectangle">
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="Key-id: "
-            android:layout_column="0"
-            android:layout_gravity="center_vertical"/>
-        <TextView
-            android:id="@+id/crypto_key_ids"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="No key selected"
-            android:layout_marginLeft="@dimen/activity_horizontal_margin"
-            android:textStyle="bold"
-            android:textColor="@android:color/holo_purple"
-            android:layout_column="1"
-            android:layout_gravity="center_vertical"/>
-        <ImageButton
-            android:id="@+id/crypto_get_key_ids"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_column="3"
-            android:src="@drawable/ic_action_accounts"
-            android:background="@android:color/transparent"
-            android:onClick="handleClick"
-            android:layout_gravity="center_vertical"/>
-        </GridLayout>
-
-
-</LinearLayout>
\ No newline at end of file