Add some missing APIs.

android.widget.Filter and android.webkit.MimeTypeMap are copied from
AOSP. Other new classes are only stub implementations.

src/api-impl/android/view/KeyCharacterMap.java

@@ -307,7 +307,7 @@ public class KeyCharacterMap {
 			}
 		}
 		return inputDevice.getKeyCharacterMap();*/
-		return null;
+		return new KeyCharacterMap(0);
 	}
 
 	/**
@@ -609,7 +609,8 @@ public class KeyCharacterMap {
 	 * @return The keyboard type.
 	 */
 	public int getKeyboardType() {
-		return nativeGetKeyboardType(mPtr);
+		return FULL;
+		// return nativeGetKeyboardType(mPtr);
 	}
 
 	/**

src/api-impl/android/view/View.java

@@ -9,8 +9,11 @@ import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
+import android.os.Parcelable;
 import android.util.AttributeSet;
 import android.util.LayoutDirection;
+import android.util.SparseArray;
+import android.view.animation.Animation;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -779,6 +782,7 @@ public class View extends Object {
 	protected ViewGroup.LayoutParams layout_params;
 	private Context context;
 	private Map<Integer,Object> tags = new HashMap<>();
+	private Object tag;
 
 	int measuredWidth = 0;
 	int measuredHeight = 0;
@@ -1019,7 +1023,10 @@ public class View extends Object {
 	public static class AccessibilityDelegate {}
 
 	public Drawable getBackground() {
-		return null;
+		return new Drawable() {
+			@Override
+			public void draw(Canvas canvas) {}
+		};
 	}
 
 	public void setClickable(boolean clickable) {}
@@ -1090,6 +1097,10 @@ public class View extends Object {
 		return result | (childMeasuredState&MEASURED_STATE_MASK);
 	}
 
+	public static int resolveSize(int size, int measureSpec) {
+        return resolveSizeAndState(size, measureSpec, 0) & MEASURED_SIZE_MASK;
+    }
+
 	public final int getMeasuredWidth() {
 		return this.measuredWidth & MEASURED_SIZE_MASK;
 	}
@@ -1168,6 +1179,13 @@ public class View extends Object {
 		return tags.get(key);
 	}
 
+	public void setTag(Object tag) {
+		this.tag = tag;
+	}
+	public Object getTag() {
+		return tag;
+	}
+
 	public void addOnLayoutChangeListener(OnLayoutChangeListener listener) {}
 
 	public boolean isSelected() {return false;}
@@ -1250,5 +1268,44 @@ public class View extends Object {
 		return result;
 	}
 
+	public static class BaseSavedState extends AbsSavedState {
+	}
+
+	public void clearFocus() {}
+
+	public void setRotation(float rotation) {}
+
+	public void setScaleX(float scaleX) {}
+	public void setScaleY(float scaleY) {}
+
+	public static View inflate(Context context, int resource, ViewGroup root) {
+		LayoutInflater factory = LayoutInflater.from(context);
+		return factory.inflate(resource, root);
+	}
+
+	public void saveHierarchyState(SparseArray<Parcelable> array) {}
+
+	public void setDuplicateParentStateEnabled(boolean enabled) {}
+
+	public boolean performClick() {
+		return false;
+	}
+
+	public void playSoundEffect(int soundConstant) {}
+
 	public void computeScroll() {}
+
+	public void jumpDrawablesToCurrentState() {}
+
+	public void setOnFocusChangeListener (View.OnFocusChangeListener l) {}
+
+	public boolean hasWindowFocus() {return true;}
+
+	public void setSaveEnabled (boolean enabled) {}
+
+	public boolean willNotDraw() {return false;}
+
+	public void setOnCreateContextMenuListener (View.OnCreateContextMenuListener l) {}
+
+	public void startAnimation(Animation animation) {}
 }

src/api-impl/android/view/ViewGroup.java

@@ -103,6 +103,7 @@ public class ViewGroup extends View implements ViewParent, ViewManager {
 	}
 
 	public void attachViewToParent(View view, int index, LayoutParams params) {
+		addViewInternal(view, index, params);
 	}
 
 	protected void removeDetachedView(View child, boolean animate) {
@@ -131,6 +132,9 @@ public class ViewGroup extends View implements ViewParent, ViewManager {
 	public LayoutParams generateLayoutParams(AttributeSet attrs) {
 		return new LayoutParams(getContext(), attrs);
 	}
+	protected LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
+		return p;
+	}
 
 	public void bringChildToFront(View child) {
 		// TODO: actually implement this (might make sense to implement it in the subclasses instead), when applicable
@@ -150,7 +154,7 @@ public class ViewGroup extends View implements ViewParent, ViewManager {
 
 	public void setOnHierarchyChangeListener(OnHierarchyChangeListener listener) {}
 
-	public boolean checkLayoutParams(LayoutParams params) {
+	protected boolean checkLayoutParams(LayoutParams params) {
 		return true;
 	}
 
@@ -233,12 +237,30 @@ public class ViewGroup extends View implements ViewParent, ViewManager {
 		child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
 	}
 
+	protected void measureChild(View child, int parentWidthMeasureSpec,
+            int parentHeightMeasureSpec) {
+        final LayoutParams lp = child.getLayoutParams();
+        final int childWidthMeasureSpec = getChildMeasureSpec(parentWidthMeasureSpec,
+                /*mPaddingLeft + mPaddingRight*/0, lp.width);
+        final int childHeightMeasureSpec = getChildMeasureSpec(parentHeightMeasureSpec,
+                /*mPaddingTop + mPaddingBottom*/0, lp.height);
+        child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
+    }
+
 	public void setAddStatesFromChildren(boolean addsStates) {}
 
 	public View getFocusedChild() {return null;}
 
 	public int getDescendantFocusability() {return 0;}
 
+	public void startViewTransition(View view) {}
+	public void endViewTransition(View view) {}
+
+	protected LayoutParams generateDefaultLayoutParams() {
+        return new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
+    }
+
+	public void focusableViewAvailable(View v) {}
 	public static class LayoutParams {
 		public static final int FILL_PARENT = -1;
 		public static final int MATCH_PARENT = -1;

src/api-impl/android/view/ViewParent.java

@@ -2,4 +2,6 @@ package android.view;
 
 public interface ViewParent {
 	public abstract ViewParent getParent();
+
+	public boolean isLayoutRequested();
 }

src/api-impl/android/view/ViewStub.java

@@ -0,0 +1,16 @@
+package android.view;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+public class ViewStub extends View {
+
+	public ViewStub(Context context) {
+		super(context);
+	}
+
+	public ViewStub(Context context, AttributeSet attributeSet) {
+		super(context, attributeSet);
+	}
+
+}

src/api-impl/android/view/accessibility/AccessibilityManager.java

@@ -1,5 +1,16 @@
 package android.view.accessibility;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class AccessibilityManager {
 
+	public boolean isTouchExplorationEnabled() {return false;}
+
+	public boolean isEnabled() {return false;}
+
+	public List getEnabledAccessibilityServiceList(int feedbackTypeFlags) {
+		return new ArrayList<>();
+	}
+
 }

src/api-impl/android/view/inputmethod/InputMethodManager.java

@@ -1,5 +1,9 @@
 package android.view.inputmethod;
 
+import android.os.IBinder;
+
 public class InputMethodManager {
 
+	public boolean hideSoftInputFromWindow(IBinder windowToken, int flags) {return false;}
+
 }