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views cache for fast lookup

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This commit is contained in:
serso 2014-09-08 20:06:59 +02:00
parent 952846ad38
commit 2a7416ffa7
2 changed files with 147 additions and 46 deletions
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86
android-app/src/main/java/org/solovyev/android/calculator/AbstractCalculatorHelper.java
View File

@ -38,6 +38,7 @@ import org.solovyev.android.calculator.history.CalculatorHistoryState;
import org.solovyev.android.calculator.view.AngleUnitsButton;
import org.solovyev.android.calculator.view.NumeralBasesButton;
import org.solovyev.android.calculator.view.OnDragListenerVibrator;
import org.solovyev.android.calculator.view.ViewsCache;
import org.solovyev.android.history.HistoryDragProcessor;
import org.solovyev.android.view.drag.*;
import org.solovyev.common.listeners.JListeners;
@ -63,6 +64,9 @@ import static org.solovyev.android.calculator.model.AndroidCalculatorEngine.Pref
*/
public abstract class AbstractCalculatorHelper implements SharedPreferences.OnSharedPreferenceChangeListener {
@Nonnull
private static final List<Integer> viewIds = new ArrayList<Integer>(200);
@Nonnull
private CalculatorPreferences.Gui.Layout layout;
@ -121,15 +125,16 @@ public abstract class AbstractCalculatorHelper implements SharedPreferences.OnSh
final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
final SimpleOnDragListener.Preferences dragPreferences = SimpleOnDragListener.getPreferences(preferences, activity);
setOnDragListeners(root, dragPreferences, preferences);
final ViewsCache views = ViewsCache.forView(root);
setOnDragListeners(views, dragPreferences, preferences);
final OnDragListener historyOnDragListener = new OnDragListenerVibrator(newOnDragListener(new HistoryDragProcessor<CalculatorHistoryState>(getCalculator()), dragPreferences), vibrator, preferences);
final DragButton historyButton = getButton(root, R.id.cpp_button_history);
final DragButton historyButton = getButton(views, R.id.cpp_button_history);
if (historyButton != null) {
historyButton.setOnDragListener(historyOnDragListener);
}
final DragButton subtractionButton = getButton(root, R.id.cpp_button_subtraction);
final DragButton subtractionButton = getButton(views, R.id.cpp_button_subtraction);
if (subtractionButton != null) {
subtractionButton.setOnDragListener(new OnDragListenerVibrator(newOnDragListener(new SimpleOnDragListener.DragProcessor() {
@Override
@ -145,64 +150,64 @@ public abstract class AbstractCalculatorHelper implements SharedPreferences.OnSh
final OnDragListener toPositionOnDragListener = new OnDragListenerVibrator(new SimpleOnDragListener(new CursorDragProcessor(), dragPreferences), vibrator, preferences);
final DragButton rightButton = getButton(root, R.id.cpp_button_right);
final DragButton rightButton = getButton(views, R.id.cpp_button_right);
if (rightButton != null) {
rightButton.setOnDragListener(toPositionOnDragListener);
}
final DragButton leftButton = getButton(root, R.id.cpp_button_left);
final DragButton leftButton = getButton(views, R.id.cpp_button_left);
if (leftButton != null) {
leftButton.setOnDragListener(toPositionOnDragListener);
}
final DragButton equalsButton = getButton(root, R.id.cpp_button_equals);
final DragButton equalsButton = getButton(views, R.id.cpp_button_equals);
if (equalsButton != null) {
equalsButton.setOnDragListener(new OnDragListenerVibrator(newOnDragListener(new EqualsDragProcessor(), dragPreferences), vibrator, preferences));
}
angleUnitsButton = getButton(root, R.id.cpp_button_6);
angleUnitsButton = getButton(views, R.id.cpp_button_6);
if (angleUnitsButton != null) {
angleUnitsButton.setOnDragListener(new OnDragListenerVibrator(newOnDragListener(new CalculatorButtons.AngleUnitsChanger(activity), dragPreferences), vibrator, preferences));
}
clearButton = getButton(root, R.id.cpp_button_clear);
clearButton = getButton(views, R.id.cpp_button_clear);
if (clearButton != null) {
clearButton.setOnDragListener(new OnDragListenerVibrator(newOnDragListener(new CalculatorButtons.NumeralBasesChanger(activity), dragPreferences), vibrator, preferences));
}
final DragButton varsButton = getButton(root, R.id.cpp_button_vars);
final DragButton varsButton = getButton(views, R.id.cpp_button_vars);
if (varsButton != null) {
varsButton.setOnDragListener(new OnDragListenerVibrator(newOnDragListener(new CalculatorButtons.VarsDragProcessor(activity), dragPreferences), vibrator, preferences));
}
final DragButton functionsButton = getButton(root, R.id.cpp_button_functions);
final DragButton functionsButton = getButton(views, R.id.cpp_button_functions);
if (functionsButton != null) {
functionsButton.setOnDragListener(new OnDragListenerVibrator(newOnDragListener(new CalculatorButtons.FunctionsDragProcessor(activity), dragPreferences), vibrator, preferences));
}
final DragButton roundBracketsButton = getButton(root, R.id.cpp_button_round_brackets);
final DragButton roundBracketsButton = getButton(views, R.id.cpp_button_round_brackets);
if (roundBracketsButton != null) {
roundBracketsButton.setOnDragListener(new OnDragListenerVibrator(newOnDragListener(new CalculatorButtons.RoundBracketsDragProcessor(), dragPreferences), vibrator, preferences));
}
if (layout == simple || layout == simple_mobile) {
toggleButtonDirectionText(root, R.id.cpp_button_1, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_2, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_3, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_1, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_2, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_3, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_6, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_7, false, DragDirection.left, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_8, false, DragDirection.left, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_6, false, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_7, false, DragDirection.left, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_8, false, DragDirection.left, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_clear, false, DragDirection.left, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_clear, false, DragDirection.left, DragDirection.up, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_4, false, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_5, false, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_4, false, DragDirection.down);
toggleButtonDirectionText(views, R.id.cpp_button_5, false, DragDirection.down);
toggleButtonDirectionText(root, R.id.cpp_button_9, false, DragDirection.left);
toggleButtonDirectionText(views, R.id.cpp_button_9, false, DragDirection.left);
toggleButtonDirectionText(root, R.id.cpp_button_multiplication, false, DragDirection.left);
toggleButtonDirectionText(root, R.id.cpp_button_plus, false, DragDirection.down, DragDirection.up);
toggleButtonDirectionText(views, R.id.cpp_button_multiplication, false, DragDirection.left);
toggleButtonDirectionText(views, R.id.cpp_button_plus, false, DragDirection.down, DragDirection.up);
}
CalculatorButtons.processButtons(theme, layout, root);
@ -220,8 +225,8 @@ public abstract class AbstractCalculatorHelper implements SharedPreferences.OnSh
});
}
private void toggleButtonDirectionText(@Nonnull View root, int id, boolean showDirectionText, @Nonnull DragDirection... dragDirections) {
final View v = getButton(root, id);
private void toggleButtonDirectionText(@Nonnull ViewsCache views, int id, boolean showDirectionText, @Nonnull DragDirection... dragDirections) {
final View v = getButton(views, id);
if (v instanceof DirectionDragButton) {
final DirectionDragButton button = (DirectionDragButton) v;
for (DragDirection dragDirection : dragDirections) {
@ -236,32 +241,33 @@ public abstract class AbstractCalculatorHelper implements SharedPreferences.OnSh
}
private void setOnDragListeners(@Nonnull View root, @Nonnull SimpleOnDragListener.Preferences dragPreferences, @Nonnull SharedPreferences preferences) {
private void setOnDragListeners(@Nonnull ViewsCache views, @Nonnull SimpleOnDragListener.Preferences dragPreferences, @Nonnull SharedPreferences preferences) {
final OnDragListener onDragListener = new OnDragListenerVibrator(newOnDragListener(new DigitButtonDragProcessor(getKeyboard()), dragPreferences), vibrator, preferences);
final List<Integer> dragButtonIds = new ArrayList<Integer>();
final List<Integer> viewIds = getViewIds();
for (Integer viewId : viewIds) {
final View view = views.findViewById(viewId);
if (view instanceof DragButton) {
((DragButton) view).setOnDragListener(onDragListener);
}
}
}
@Nonnull
private static List<Integer> getViewIds() {
if (viewIds.isEmpty()) {
for (Field field : R.id.class.getDeclaredFields()) {
int modifiers = field.getModifiers();
if (Modifier.isFinal(modifiers) && Modifier.isStatic(modifiers)) {
try {
int viewId = field.getInt(R.id.class);
final View view = root.findViewById(viewId);
if (view instanceof DragButton) {
dragButtonIds.add(viewId);
}
viewIds.add(field.getInt(R.id.class));
} catch (IllegalAccessException e) {
Log.e(R.id.class.getName(), e.getMessage());
}
}
}
for (Integer dragButtonId : dragButtonIds) {
final DragButton button = getButton(root, dragButtonId);
if (button != null) {
button.setOnDragListener(onDragListener);
}
}
return viewIds;
}
@Nonnull
@ -270,8 +276,8 @@ public abstract class AbstractCalculatorHelper implements SharedPreferences.OnSh
}
@Nullable
private <T extends DragButton> T getButton(@Nonnull View root, int buttonId) {
return (T) root.findViewById(buttonId);
private <T extends DragButton> T getButton(@Nonnull ViewsCache views, int buttonId) {
return (T) views.findViewById(buttonId);
}
@Nonnull

95
android-app/src/main/java/org/solovyev/android/calculator/view/ViewsCache.java Normal file
View File

@ -0,0 +1,95 @@
package org.solovyev.android.calculator.view;
import android.app.Activity;
import android.support.v4.app.Fragment;
import android.util.SparseArray;
import android.view.View;
import javax.annotation.Nonnull;
public abstract class ViewsCache {
@Nonnull
private final SparseArray<View> cache = new SparseArray<View>();
protected ViewsCache() {
}
@Nonnull
public static ViewsCache forActivity(@Nonnull Activity activity) {
return new ActivityViewsCache(activity);
}
@Nonnull
public static ViewsCache forFragment(@Nonnull Fragment fragment) {
return new FragmentViewsCache(fragment);
}
@Nonnull
public static ViewsCache forView(@Nonnull View view) {
return new ViewViewsCache(view);
}
public final View findViewById(int id) {
View view = cache.get(id);
if (view == null) {
view = lookupViewById(id);
if (view != null) {
cache.append(id, view);
}
}
return view;
}
public final void clear() {
cache.clear();
}
protected abstract View lookupViewById(int id);
private static final class FragmentViewsCache extends ViewsCache {
@Nonnull
private final Fragment fragment;
private FragmentViewsCache(@Nonnull Fragment fragment) {
this.fragment = fragment;
}
@Override
protected View lookupViewById(int id) {
final View view = fragment.getView();
return view != null ? view.findViewById(id) : null;
}
}
private static final class ViewViewsCache extends ViewsCache {
@Nonnull
private final View view;
private ViewViewsCache(@Nonnull View view) {
this.view = view;
}
@Override
protected View lookupViewById(int id) {
return view.findViewById(id);
}
}
private static final class ActivityViewsCache extends ViewsCache {
@Nonnull
private final Activity activity;
private ActivityViewsCache(@Nonnull Activity activity) {
this.activity = activity;
}
@Override
protected View lookupViewById(int id) {
return activity.findViewById(id);
}
}
}