add ability to set the PopupWindow height (see #11)

Also,
- update build tools to 23.0.3
- update support-annotations to 23.3.0
- maven 1.0.8

Author: jaredrummler

README.md

@@ -32,27 +32,29 @@ spinner.setOnItemSelectedListener(new MaterialSpinner.OnItemSelectedListener<Str
 
 You can add attributes to customize the view. Available attributes:
 
-| name                | type    | info                                                   |
-|---------------------|---------|--------------------------------------------------------|
-| ms_arrow_tint       | color   | sets the color on the drop-down arrow                  |
-| ms_hide_arrow       | boolean | set to true to hide the arrow drawable                 |
-| ms_background_color | color   | set the background color for the spinner and drop-down |
-| ms_text_color       | color   | set the text color                                     |
+| name                   | type      | info                                                   |
+|------------------------|-----------|--------------------------------------------------------|
+| ms_arrow_tint          | color     | sets the color on the drop-down arrow                  |
+| ms_hide_arrow          | boolean   | set to true to hide the arrow drawable                 |
+| ms_background_color    | color     | set the background color for the spinner and drop-down |
+| ms_text_color          | color     | set the text color                                     |
+| ms_dropdown_max_height | dimension | set the max height of the drop-down                    |
+| ms_dropdown_height     | dimension | set the height of the drop-down                        |
 
 Download
 --------
 
-Download [the latest AAR](https://repo1.maven.org/maven2/com/jaredrummler/material-spinner/1.0.7/material-spinner-1.0.7.aar) or grab via Gradle:
+Download [the latest AAR](https://repo1.maven.org/maven2/com/jaredrummler/material-spinner/1.0.8/material-spinner-1.0.8.aar) or grab via Gradle:
 
 ```groovy
-compile 'com.jaredrummler:material-spinner:1.0.7'
+compile 'com.jaredrummler:material-spinner:1.0.8'
 ```
 or Maven:
 ```xml
 <dependency>
   <groupId>com.jaredrummler</groupId>
   <artifactId>material-spinner</artifactId>
-  <version>1.0.7</version>
+  <version>1.0.8</version>
   <type>aar</type>
 </dependency>
 ```

app/src/main/java/com/jaredrummler/materialspinner/example/MainActivity.java

@@ -31,6 +31,11 @@
 
 public class MainActivity extends AppCompatActivity {
 
+  private static final String[] ANDROID_VERSIONS = {
+      "Cupcake", "Donut", "Eclair", "Froyo", "Gingerbread", "Honeycomb", "Ice Cream Sandwich", "Jelly Bean", "KitKat",
+      "Lollipop", "Marshmallow"
+  };
+
   @Override protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
@@ -49,7 +54,7 @@ public class MainActivity extends AppCompatActivity {
     });
 
     MaterialSpinner spinner = (MaterialSpinner) findViewById(R.id.spinner);
-    spinner.setItems("Ice Cream Sandwich", "Jelly Bean", "KitKat", "Lollipop", "Marshmallow");
+    spinner.setItems(ANDROID_VERSIONS);
     spinner.setOnItemSelectedListener(new MaterialSpinner.OnItemSelectedListener<String>() {
 
       @Override public void onItemSelected(MaterialSpinner view, int position, long id, String item) {

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

@@ -32,6 +32,8 @@
 
   <com.jaredrummler.materialspinner.MaterialSpinner
       android:id="@+id/spinner"
+      app:ms_dropdown_max_height="350dp"
+      app:ms_dropdown_height="wrap_content"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"/>
 

gradle.properties

@@ -15,8 +15,8 @@
 #
 #
 
-VERSION_NAME=1.0.7
-VERSION_CODE=8
+VERSION_NAME=1.0.8
+VERSION_CODE=9
 GROUP=com.jaredrummler
 
 POM_NAME=Material Spinner

lib-materialspinner/build.gradle

@@ -19,7 +19,7 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "23.0.2"
+    buildToolsVersion "23.0.3"
     resourcePrefix 'ms__'
 
     defaultConfig {
@@ -30,7 +30,7 @@ android {
 
 dependencies {
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:support-annotations:23.2.0'
+    compile 'com.android.support:support-annotations:23.3.0'
 }
 
 apply from: 'https://raw.github.com/chrisbanes/gradle-mvn-push/master/gradle-mvn-push.gradle'

lib-materialspinner/src/main/java/com/jaredrummler/materialspinner/MaterialSpinner.java

@@ -61,6 +61,8 @@ public class MaterialSpinner extends TextView {
   private Drawable arrowDrawable;
   private boolean hideArrow;
   private boolean nothingSelected;
+  private int popupWindowMaxHeight;
+  private int popupWindowHeight;
   private int selectedIndex;
   private int backgroundColor;
   private int arrowColor;
@@ -93,6 +95,9 @@ private void init(Context context, AttributeSet attrs) {
       textColor = ta.getColor(R.styleable.MaterialSpinner_ms_text_color, defaultColor);
       arrowColor = ta.getColor(R.styleable.MaterialSpinner_ms_arrow_tint, textColor);
       hideArrow = ta.getBoolean(R.styleable.MaterialSpinner_ms_hide_arrow, false);
+      popupWindowMaxHeight = ta.getDimensionPixelSize(R.styleable.MaterialSpinner_ms_dropdown_max_height, 0);
+      popupWindowHeight = ta.getLayoutDimension(R.styleable.MaterialSpinner_ms_dropdown_height,
+          WindowManager.LayoutParams.WRAP_CONTENT);
       arrowColorDisabled = Utils.lighter(arrowColor, 0.8f);
     } finally {
       ta.recycle();
@@ -183,7 +188,7 @@ private void init(Context context, AttributeSet attrs) {
 
   @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
     popupWindow.setWidth(MeasureSpec.getSize(widthMeasureSpec));
-    popupWindow.setHeight(WindowManager.LayoutParams.WRAP_CONTENT);
+    popupWindow.setHeight(calculatePopupWindowHeight());
     super.onMeasure(widthMeasureSpec, heightMeasureSpec);
   }
 
@@ -411,6 +416,40 @@ private void animateArrow(boolean shouldRotateUp) {
     animator.start();
   }
 
+  /**
+   * Set the maximum height of the dropdown menu.
+   *
+   * @param height
+   *     the height in pixels
+   */
+  public void setDropdownMaxHeight(int height) {
+    popupWindowMaxHeight = height;
+    popupWindow.setHeight(calculatePopupWindowHeight());
+  }
+
+  /**
+   * Set the height of the dropdown menu
+   *
+   * @param height
+   *     the height in pixels
+   */
+  public void setDropdownHeight(int height) {
+    popupWindowHeight = height;
+    popupWindow.setHeight(calculatePopupWindowHeight());
+  }
+
+  private int calculatePopupWindowHeight() {
+    float listViewHeight = adapter.getCount() * getResources().getDimension(R.dimen.ms__item_height);
+    if (popupWindowMaxHeight > 0 && listViewHeight > popupWindowMaxHeight) {
+      return popupWindowMaxHeight;
+    } else if (popupWindowHeight != WindowManager.LayoutParams.MATCH_PARENT
+        && popupWindowHeight != WindowManager.LayoutParams.WRAP_CONTENT
+        && popupWindowHeight <= listViewHeight) {
+      return popupWindowHeight;
+    }
+    return WindowManager.LayoutParams.WRAP_CONTENT;
+  }
+
   /**
    * Get the {@link PopupWindow}.
    *

lib-materialspinner/src/main/res/layout/ms__list_item.xml

@@ -24,7 +24,7 @@
     android:layout_gravity="start|center_vertical"
     android:ellipsize="marquee"
     android:gravity="center_vertical"
-    android:minHeight="48dp"
+    android:minHeight="@dimen/ms__item_height"
     android:paddingBottom="@dimen/ms__padding_top"
     android:paddingLeft="@dimen/ms__padding_left"
     android:paddingRight="@dimen/ms__padding_left"

lib-materialspinner/src/main/res/values/attrs.xml

@@ -22,5 +22,11 @@
     <attr name="ms_hide_arrow" format="boolean"/>
     <attr name="ms_background_color" format="color"/>
     <attr name="ms_text_color" format="color"/>
+    <attr name="ms_dropdown_max_height" format="dimension"/>
+    <attr name="ms_dropdown_height" format="dimension">
+      <enum name="fill_parent" value="-1"/>
+      <enum name="match_parent" value="-1"/>
+      <enum name="wrap_content" value="-2"/>
+    </attr>
   </declare-styleable>
 </resources>

lib-materialspinner/src/main/res/values/dimens.xml

@@ -17,6 +17,7 @@
   -->
 
 <resources>
-    <dimen name="ms__padding_left">24dp</dimen>
-    <dimen name="ms__padding_top">12dp</dimen>
+  <dimen name="ms__padding_left">24dp</dimen>
+  <dimen name="ms__padding_top">12dp</dimen>
+  <dimen name="ms__item_height">48dp</dimen>
 </resources>