Add a few helpful APIs.

Change-Id: Ie57aa71eb77a1e0fb058f4eb6f40d4144a6dfce7

api/current.xml

@@ -61923,6 +61923,21 @@
 <parameter name="sqlString" type="java.lang.String">
 </parameter>
 </method>
+<method name="appendSelectionArgs"
+ return="java.lang.String[]"
+ abstract="false"
+ native="false"
+ synchronized="false"
+ static="true"
+ final="false"
+ deprecated="not deprecated"
+ visibility="public"
+>
+<parameter name="originalValues" type="java.lang.String[]">
+</parameter>
+<parameter name="newValues" type="java.lang.String[]">
+</parameter>
+</method>
 <method name="appendValueToSql"
  return="void"
  abstract="false"
@@ -104574,6 +104589,21 @@
  visibility="public"
 >
 </method>
+<method name="getBooleanQueryParameter"
+ return="boolean"
+ abstract="false"
+ native="false"
+ synchronized="false"
+ static="false"
+ final="false"
+ deprecated="not deprecated"
+ visibility="public"
+>
+<parameter name="key" type="java.lang.String">
+</parameter>
+<parameter name="defaultValue" type="boolean">
+</parameter>
+</method>
 <method name="getEncodedAuthority"
  return="java.lang.String"
  abstract="true"
@@ -213236,17 +213266,6 @@
  visibility="public"
 >
 </method>
-<method name="getVisibleTitleHeight"
- return="int"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-</method>
 <method name="getZoomControls"
  return="android.view.View"
  abstract="false"

core/java/android/database/DatabaseUtils.java

@@ -1203,4 +1203,18 @@ public class DatabaseUtils {
         }
         return STATEMENT_OTHER;
     }
+
+    /**
+     * Appends one set of selection args to another. This is useful when adding a selection
+     * argument to a user provided set.
+     */
+    public static String[] appendSelectionArgs(String[] originalValues, String[] newValues) {
+        if (originalValues == null || originalValues.length == 0) {
+            return newValues;
+        }
+        String[] result = new String[originalValues.length + newValues.length ];
+        System.arraycopy(originalValues, 0, result, 0, originalValues.length);
+        System.arraycopy(newValues, 0, result, originalValues.length, newValues.length);
+        return result;
+    }
 }

core/java/android/net/Uri.java

@@ -1568,7 +1568,7 @@ public abstract class Uri implements Parcelable, Comparable<Uri> {
             throw new UnsupportedOperationException(NOT_HIERARCHICAL);
         }
         if (key == null) {
-          throw new NullPointerException("key");
+            throw new NullPointerException("key");
         }
 
         final String query = getEncodedQuery();
@@ -1608,6 +1608,24 @@ public abstract class Uri implements Parcelable, Comparable<Uri> {
         return null;
     }
 
+    /**
+     * Searches the query string for the first value with the given key and interprets it
+     * as a boolean value. "false" and "0" are interpreted as <code>false</code>, everything
+     * else is interpreted as <code>true</code>.
+     *
+     * @param key which will be decoded
+     * @param defaultValue the default value to return if there is no query parameter for key
+     * @return the boolean interpretation of the query parameter key
+     */
+    public boolean getBooleanQueryParameter(String key, boolean defaultValue) {
+        String flag = getQueryParameter(key);
+        if (flag == null) {
+            return defaultValue;
+        }
+        flag = flag.toLowerCase();
+        return (!"false".equals(flag) && !"0".equals(flag));
+    }
+
     /** Identifies a null parcelled Uri. */
     private static final int NULL_TYPE_ID = 0;