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am 496fd778: Merge "Custom view for key preview popup" 

* commit '496fd77850cbc47add3cde67d4c788e01213e29c':
  Custom view for key preview popup
main
Tadashi G. Takaoka 2014-06-23 08:45:11 +00:00 committed by Android Git Automerger
parent 61eef3d4ce 496fd77850
commit f8866ffd39
9 changed files with 153 additions and 161 deletions
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27
java/res/layout/key_preview.xml
View File

@ -1,27 +0,0 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
/*
**
** Copyright 2013, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:minWidth="32dp"
android:gravity="center"
style="?attr/keyPreviewTextViewStyle"
/>

6
java/res/values/attrs.xml
View File

@ -26,8 +26,6 @@
<attr name="keyboardViewStyle" format="reference" />
<!-- MainKeyboardView style -->
<attr name="mainKeyboardViewStyle" format="reference" />
<!-- Key preview text view style -->
<attr name="keyPreviewTextViewStyle" format="reference"/>
<!-- EmojiPalettesView style -->
<attr name="emojiPalettesViewStyle" format="reference" />
<!-- MoreKeysKeyboard style -->
@ -106,8 +104,8 @@
<attr name="longPressShiftLockTimeout" format="integer" />
<!-- Ignore special key timeout while typing in millisecond. -->
<attr name="ignoreAltCodeKeyTimeout" format="integer" />
<!-- Layout resource for key press feedback.-->
<attr name="keyPreviewLayout" format="reference" />
<!-- Background resource for key press feedback.-->
<attr name="keyPreviewBackground" format="reference" />
<!-- Vertical offset of the key press feedback from the key. -->
<attr name="keyPreviewOffset" format="dimension" />
<!-- Height of the key press feedback popup. -->

2
java/res/values/themes-common.xml
View File

@ -75,7 +75,6 @@
<item name="keyRepeatInterval">@integer/config_key_repeat_interval</item>
<item name="longPressShiftLockTimeout">@integer/config_longpress_shift_lock_timeout</item>
<item name="ignoreAltCodeKeyTimeout">@integer/config_ignore_alt_code_key_timeout</item>
<item name="keyPreviewLayout">@layout/key_preview</item>
<item name="keyPreviewHeight">@dimen/config_key_preview_height</item>
<!-- TODO: consolidate key preview linger timeout with the key preview animation parameters. -->
<item name="keyPreviewLingerTimeout">@integer/config_key_preview_linger_timeout</item>
@ -106,7 +105,6 @@
<style
name="MainKeyboardView"
parent="KeyboardView" />
<style name="KeyPreviewTextView" />
<!-- Though {@link EmojiPalettesView} doesn't extend {@link KeyboardView}, some views inside it,
for instance delete button, need themed {@link KeyboardView} attributes. -->
<style name="EmojiPalettesView" />

8
java/res/values/themes-ics.xml
View File

@ -23,7 +23,6 @@
<item name="keyboardStyle">@style/Keyboard.ICS</item>
<item name="keyboardViewStyle">@style/KeyboardView.ICS</item>
<item name="mainKeyboardViewStyle">@style/MainKeyboardView.ICS</item>
<item name="keyPreviewTextViewStyle">@style/KeyPreviewTextView.ICS</item>
<item name="emojiPalettesViewStyle">@style/EmojiPalettesView.ICS</item>
<item name="moreKeysKeyboardStyle">@style/MoreKeysKeyboard.ICS</item>
<item name="moreKeysKeyboardViewStyle">@style/MoreKeysKeyboardView.ICS</item>
@ -66,6 +65,7 @@
name="MainKeyboardView.ICS"
parent="KeyboardView.ICS"
>
<item name="keyPreviewBackground">@drawable/keyboard_key_feedback_ics</item>
<item name="keyPreviewOffset">@dimen/config_key_preview_offset_holo</item>
<item name="gestureFloatingPreviewTextColor">@color/highlight_color_ics</item>
<item name="gestureFloatingPreviewColor">@color/gesture_floating_preview_color_holo</item>
@ -75,12 +75,6 @@
<item name="languageOnSpacebarTextShadowRadius">1.0</item>
<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
</style>
<style
name="KeyPreviewTextView.ICS"
parent="KeyPreviewTextView"
>
<item name="android:background">@drawable/keyboard_key_feedback_ics</item>
</style>
<!-- Though {@link EmojiPalettesView} doesn't extend {@link KeyboardView}, some views inside it,
for instance delete button, need themed {@link KeyboardView} attributes. -->
<style

8
java/res/values/themes-klp.xml
View File

@ -23,7 +23,6 @@
<item name="keyboardStyle">@style/Keyboard.KLP</item>
<item name="keyboardViewStyle">@style/KeyboardView.KLP</item>
<item name="mainKeyboardViewStyle">@style/MainKeyboardView.KLP</item>
<item name="keyPreviewTextViewStyle">@style/KeyPreviewTextView.KLP</item>
<item name="emojiPalettesViewStyle">@style/EmojiPalettesView.KLP</item>
<item name="moreKeysKeyboardStyle">@style/MoreKeysKeyboard.KLP</item>
<item name="moreKeysKeyboardViewStyle">@style/MoreKeysKeyboardView.KLP</item>
@ -66,6 +65,7 @@
name="MainKeyboardView.KLP"
parent="KeyboardView.KLP"
>
<item name="keyPreviewBackground">@drawable/keyboard_key_feedback_klp</item>
<item name="keyPreviewOffset">@dimen/config_key_preview_offset_holo</item>
<item name="gestureFloatingPreviewTextColor">@color/highlight_color_klp</item>
<item name="gestureFloatingPreviewColor">@color/gesture_floating_preview_color_holo</item>
@ -75,12 +75,6 @@
<item name="languageOnSpacebarTextShadowRadius">1.0</item>
<item name="languageOnSpacebarTextShadowColor">@color/spacebar_text_shadow_color_holo</item>
</style>
<style
name="KeyPreviewTextView.KLP"
parent="KeyPreviewTextView"
>
<item name="android:background">@drawable/keyboard_key_feedback_klp</item>
</style>
<!-- Though {@link EmojiPalettesView} doesn't extend {@link KeyboardView}, some views inside it,
for instance delete button, need themed {@link KeyboardView} attributes. -->
<style

8
java/res/values/themes-lxx-dark.xml
View File

@ -23,7 +23,6 @@
<item name="keyboardStyle">@style/Keyboard.LXX_Dark</item>
<item name="keyboardViewStyle">@style/KeyboardView.LXX_Dark</item>
<item name="mainKeyboardViewStyle">@style/MainKeyboardView.LXX_Dark</item>
<item name="keyPreviewTextViewStyle">@style/KeyPreviewTextView.LXX_Dark</item>
<item name="emojiPalettesViewStyle">@style/EmojiPalettesView.LXX_Dark</item>
<item name="moreKeysKeyboardStyle">@style/MoreKeysKeyboard.LXX_Dark</item>
<item name="moreKeysKeyboardViewStyle">@style/MoreKeysKeyboardView.LXX_Dark</item>
@ -67,6 +66,7 @@
name="MainKeyboardView.LXX_Dark"
parent="KeyboardView.LXX_Dark"
>
<item name="keyPreviewBackground">@drawable/keyboard_key_feedback_lxx_dark</item>
<item name="keyPreviewOffset">@dimen/config_key_preview_offset_holo</item>
<item name="gestureFloatingPreviewTextColor">@color/highlight_color_lxx_dark</item>
<item name="gestureFloatingPreviewColor">@color/gesture_floating_preview_color_lxx_dark</item>
@ -76,12 +76,6 @@
<!-- A negative value to disable text shadow layer. -->
<item name="languageOnSpacebarTextShadowRadius">-1.0</item>
</style>
<style
name="KeyPreviewTextView.LXX_Dark"
parent="KeyPreviewTextView"
>
<item name="android:background">@drawable/keyboard_key_feedback_lxx_dark</item>
</style>
<!-- Though {@link EmojiPalettesView} doesn't extend {@link KeyboardView}, some views inside it,
for instance delete button, need themed {@link KeyboardView} attributes. -->
<style

156
java/src/com/android/inputmethod/keyboard/internal/KeyPreviewChoreographer.java
View File

@ -21,17 +21,12 @@ import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.TypedValue;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.DecelerateInterpolator;
import android.widget.TextView;
import com.android.inputmethod.keyboard.Key;
import com.android.inputmethod.latin.R;
import com.android.inputmethod.latin.utils.CoordinateUtils;
import com.android.inputmethod.latin.utils.ViewLayoutUtils;
@ -46,10 +41,11 @@ import java.util.HashSet;
* - how key previews should be shown and dismissed.
*/
public final class KeyPreviewChoreographer {
// Free {@link TextView} pool that can be used for key preview.
private final ArrayDeque<TextView> mFreeKeyPreviewTextViews = new ArrayDeque<>();
// Map from {@link Key} to {@link TextView} that is currently being displayed as key preview.
private final HashMap<Key,TextView> mShowingKeyPreviewTextViews = new HashMap<>();
// Free {@link KeyPreviewView} pool that can be used for key preview.
private final ArrayDeque<KeyPreviewView> mFreeKeyPreviewViews = new ArrayDeque<>();
// Map from {@link Key} to {@link KeyPreviewView} that is currently being displayed as key
// preview.
private final HashMap<Key,KeyPreviewView> mShowingKeyPreviewViews = new HashMap<>();
private final KeyPreviewDrawParams mParams;
@ -57,32 +53,28 @@ public final class KeyPreviewChoreographer {
mParams = params;
}
private TextView getKeyPreviewTextView(final Key key, final ViewGroup placerView) {
TextView previewTextView = mShowingKeyPreviewTextViews.remove(key);
if (previewTextView != null) {
return previewTextView;
public KeyPreviewView getKeyPreviewView(final Key key, final ViewGroup placerView) {
KeyPreviewView keyPreviewView = mShowingKeyPreviewViews.remove(key);
if (keyPreviewView != null) {
return keyPreviewView;
}
previewTextView = mFreeKeyPreviewTextViews.poll();
if (previewTextView != null) {
return previewTextView;
keyPreviewView = mFreeKeyPreviewViews.poll();
if (keyPreviewView != null) {
return keyPreviewView;
}
final Context context = placerView.getContext();
if (mParams.mLayoutId != 0) {
previewTextView = (TextView)LayoutInflater.from(context)
.inflate(mParams.mLayoutId, null);
} else {
previewTextView = new TextView(context);
}
placerView.addView(previewTextView, ViewLayoutUtils.newLayoutParam(placerView, 0, 0));
return previewTextView;
keyPreviewView = new KeyPreviewView(context, null /* attrs */);
keyPreviewView.setBackgroundResource(mParams.mPreviewBackgroundResId);
placerView.addView(keyPreviewView, ViewLayoutUtils.newLayoutParam(placerView, 0, 0));
return keyPreviewView;
}
public boolean isShowingKeyPreview(final Key key) {
return mShowingKeyPreviewTextViews.containsKey(key);
return mShowingKeyPreviewViews.containsKey(key);
}
public void dismissAllKeyPreviews() {
for (final Key key : new HashSet<>(mShowingKeyPreviewTextViews.keySet())) {
for (final Key key : new HashSet<>(mShowingKeyPreviewViews.keySet())) {
dismissKeyPreview(key, false /* withAnimation */);
}
}
@ -91,11 +83,11 @@ public final class KeyPreviewChoreographer {
if (key == null) {
return;
}
final TextView previewTextView = mShowingKeyPreviewTextViews.get(key);
if (previewTextView == null) {
final KeyPreviewView keyPreviewView = mShowingKeyPreviewViews.get(key);
if (keyPreviewView == null) {
return;
}
final Object tag = previewTextView.getTag();
final Object tag = keyPreviewView.getTag();
if (withAnimation) {
if (tag instanceof KeyPreviewAnimations) {
final KeyPreviewAnimations animation = (KeyPreviewAnimations)tag;
@ -104,114 +96,76 @@ public final class KeyPreviewChoreographer {
}
}
// Dismiss preview without animation.
mShowingKeyPreviewTextViews.remove(key);
mShowingKeyPreviewViews.remove(key);
if (tag instanceof Animator) {
((Animator)tag).cancel();
}
previewTextView.setTag(null);
previewTextView.setVisibility(View.INVISIBLE);
mFreeKeyPreviewTextViews.add(previewTextView);
keyPreviewView.setTag(null);
keyPreviewView.setVisibility(View.INVISIBLE);
mFreeKeyPreviewViews.add(keyPreviewView);
}
// Background state set
private static final int[][][] KEY_PREVIEW_BACKGROUND_STATE_TABLE = {
{ // STATE_MIDDLE
{},
{ R.attr.state_has_morekeys }
},
{ // STATE_LEFT
{ R.attr.state_left_edge },
{ R.attr.state_left_edge, R.attr.state_has_morekeys }
},
{ // STATE_RIGHT
{ R.attr.state_right_edge },
{ R.attr.state_right_edge, R.attr.state_has_morekeys }
}
};
private static final int STATE_MIDDLE = 0;
private static final int STATE_LEFT = 1;
private static final int STATE_RIGHT = 2;
private static final int STATE_NORMAL = 0;
private static final int STATE_HAS_MOREKEYS = 1;
public void placeKeyPreviewAndShow(final Key key, final KeyboardIconsSet iconsSet,
final KeyDrawParams drawParams, final int keyboardViewWidth, final int[] keyboardOrigin,
final ViewGroup placerView, final boolean withAnimation) {
final TextView previewTextView = getKeyPreviewTextView(key, placerView);
final KeyPreviewView keyPreviewView = getKeyPreviewView(key, placerView);
placeKeyPreview(
key, previewTextView, iconsSet, drawParams, keyboardViewWidth, keyboardOrigin);
showKeyPreview(key, previewTextView, withAnimation);
key, keyPreviewView, iconsSet, drawParams, keyboardViewWidth, keyboardOrigin);
showKeyPreview(key, keyPreviewView, withAnimation);
}
private void placeKeyPreview(final Key key, final TextView previewTextView,
private void placeKeyPreview(final Key key, final KeyPreviewView keyPreviewView,
final KeyboardIconsSet iconsSet, final KeyDrawParams drawParams,
final int keyboardViewWidth, final int[] originCoords) {
previewTextView.setTextColor(drawParams.mPreviewTextColor);
final Drawable background = previewTextView.getBackground();
final String label = key.getPreviewLabel();
// What we show as preview should match what we show on a key top in onDraw().
if (label != null) {
// TODO Should take care of temporaryShiftLabel here.
previewTextView.setCompoundDrawables(null, null, null, null);
previewTextView.setTextSize(TypedValue.COMPLEX_UNIT_PX,
key.selectPreviewTextSize(drawParams));
previewTextView.setTypeface(key.selectPreviewTypeface(drawParams));
previewTextView.setText(label);
} else {
previewTextView.setCompoundDrawables(null, null, null, key.getPreviewIcon(iconsSet));
previewTextView.setText(null);
}
previewTextView.measure(
keyPreviewView.setPreviewVisual(key, iconsSet, drawParams);
keyPreviewView.measure(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
mParams.setGeometry(previewTextView);
final int previewWidth = previewTextView.getMeasuredWidth();
mParams.setGeometry(keyPreviewView);
final int previewWidth = keyPreviewView.getMeasuredWidth();
final int previewHeight = mParams.mPreviewHeight;
final int keyDrawWidth = key.getDrawWidth();
// The key preview is horizontally aligned with the center of the visible part of the
// parent key. If it doesn't fit in this {@link KeyboardView}, it is moved inward to fit and
// the left/right background is used if such background is specified.
final int statePosition;
final int keyPreviewPosition;
int previewX = key.getDrawX() - (previewWidth - keyDrawWidth) / 2
+ CoordinateUtils.x(originCoords);
if (previewX < 0) {
previewX = 0;
statePosition = STATE_LEFT;
keyPreviewPosition = KeyPreviewView.POSITION_LEFT;
} else if (previewX > keyboardViewWidth - previewWidth) {
previewX = keyboardViewWidth - previewWidth;
statePosition = STATE_RIGHT;
keyPreviewPosition = KeyPreviewView.POSITION_RIGHT;
} else {
statePosition = STATE_MIDDLE;
keyPreviewPosition = KeyPreviewView.POSITION_MIDDLE;
}
final boolean hasMoreKeys = (key.getMoreKeys() != null);
keyPreviewView.setPreviewBackground(hasMoreKeys, keyPreviewPosition);
// The key preview is placed vertically above the top edge of the parent key with an
// arbitrary offset.
final int previewY = key.getY() - previewHeight + mParams.mPreviewOffset
+ CoordinateUtils.y(originCoords);
if (background != null) {
final int hasMoreKeys = (key.getMoreKeys() != null) ? STATE_HAS_MOREKEYS : STATE_NORMAL;
background.setState(KEY_PREVIEW_BACKGROUND_STATE_TABLE[statePosition][hasMoreKeys]);
}
ViewLayoutUtils.placeViewAt(
previewTextView, previewX, previewY, previewWidth, previewHeight);
previewTextView.setPivotX(previewWidth / 2.0f);
previewTextView.setPivotY(previewHeight);
keyPreviewView, previewX, previewY, previewWidth, previewHeight);
keyPreviewView.setPivotX(previewWidth / 2.0f);
keyPreviewView.setPivotY(previewHeight);
}
private void showKeyPreview(final Key key, final TextView previewTextView,
private void showKeyPreview(final Key key, final KeyPreviewView keyPreviewView,
final boolean withAnimation) {
if (!withAnimation) {
previewTextView.setVisibility(View.VISIBLE);
mShowingKeyPreviewTextViews.put(key, previewTextView);
keyPreviewView.setVisibility(View.VISIBLE);
mShowingKeyPreviewViews.put(key, keyPreviewView);
return;
}
// Show preview with animation.
final Animator showUpAnimation = createShowUpAniation(key, previewTextView);
final Animator dismissAnimation = createDismissAnimation(key, previewTextView);
final Animator showUpAnimation = createShowUpAniation(key, keyPreviewView);
final Animator dismissAnimation = createDismissAnimation(key, keyPreviewView);
final KeyPreviewAnimations animation = new KeyPreviewAnimations(
showUpAnimation, dismissAnimation);
previewTextView.setTag(animation);
keyPreviewView.setTag(animation);
animation.startShowUp();
}
@ -221,13 +175,13 @@ public final class KeyPreviewChoreographer {
private static final DecelerateInterpolator DECELERATE_INTERPOLATOR =
new DecelerateInterpolator();
private Animator createShowUpAniation(final Key key, final TextView previewTextView) {
private Animator createShowUpAniation(final Key key, final KeyPreviewView keyPreviewView) {
// TODO: Optimization for no scale animation and no duration.
final ObjectAnimator scaleXAnimation = ObjectAnimator.ofFloat(
previewTextView, View.SCALE_X, mParams.getShowUpStartScale(),
keyPreviewView, View.SCALE_X, mParams.getShowUpStartScale(),
KEY_PREVIEW_SHOW_UP_END_SCALE);
final ObjectAnimator scaleYAnimation = ObjectAnimator.ofFloat(
previewTextView, View.SCALE_Y, mParams.getShowUpStartScale(),
keyPreviewView, View.SCALE_Y, mParams.getShowUpStartScale(),
KEY_PREVIEW_SHOW_UP_END_SCALE);
final AnimatorSet showUpAnimation = new AnimatorSet();
showUpAnimation.play(scaleXAnimation).with(scaleYAnimation);
@ -236,18 +190,18 @@ public final class KeyPreviewChoreographer {
showUpAnimation.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(final Animator animation) {
showKeyPreview(key, previewTextView, false /* withAnimation */);
showKeyPreview(key, keyPreviewView, false /* withAnimation */);
}
});
return showUpAnimation;
}
private Animator createDismissAnimation(final Key key, final TextView previewTextView) {
private Animator createDismissAnimation(final Key key, final KeyPreviewView keyPreviewView) {
// TODO: Optimization for no scale animation and no duration.
final ObjectAnimator scaleXAnimation = ObjectAnimator.ofFloat(
previewTextView, View.SCALE_X, mParams.getDismissEndScale());
keyPreviewView, View.SCALE_X, mParams.getDismissEndScale());
final ObjectAnimator scaleYAnimation = ObjectAnimator.ofFloat(
previewTextView, View.SCALE_Y, mParams.getDismissEndScale());
keyPreviewView, View.SCALE_Y, mParams.getDismissEndScale());
final AnimatorSet dismissAnimation = new AnimatorSet();
dismissAnimation.play(scaleXAnimation).with(scaleYAnimation);
final int dismissDuration = Math.min(

9
java/src/com/android/inputmethod/keyboard/internal/KeyPreviewDrawParams.java
View File

@ -23,9 +23,9 @@ import com.android.inputmethod.latin.R;
public final class KeyPreviewDrawParams {
// XML attributes of {@link MainKeyboardView}.
public final int mLayoutId;
public final int mPreviewOffset;
public final int mPreviewHeight;
public final int mPreviewBackgroundResId;
private int mShowUpDuration;
private int mDismissDuration;
private float mShowUpStartScale;
@ -63,13 +63,10 @@ public final class KeyPreviewDrawParams {
R.styleable.MainKeyboardView_keyPreviewOffset, 0);
mPreviewHeight = mainKeyboardViewAttr.getDimensionPixelSize(
R.styleable.MainKeyboardView_keyPreviewHeight, 0);
mPreviewBackgroundResId = mainKeyboardViewAttr.getResourceId(
R.styleable.MainKeyboardView_keyPreviewBackground, 0);
mLingerTimeout = mainKeyboardViewAttr.getInt(
R.styleable.MainKeyboardView_keyPreviewLingerTimeout, 0);
mLayoutId = mainKeyboardViewAttr.getResourceId(
R.styleable.MainKeyboardView_keyPreviewLayout, 0);
if (mLayoutId == 0) {
mShowPopup = false;
}
}
public void setVisibleOffset(final int previewVisibleOffset) {

90
java/src/com/android/inputmethod/keyboard/internal/KeyPreviewView.java Normal file
View File

@ -0,0 +1,90 @@
/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.inputmethod.keyboard.internal;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.Gravity;
import android.widget.TextView;
import com.android.inputmethod.keyboard.Key;
import com.android.inputmethod.latin.R;
/**
* The pop up key preview view.
*/
public class KeyPreviewView extends TextView {
public static final int POSITION_MIDDLE = 0;
public static final int POSITION_LEFT = 1;
public static final int POSITION_RIGHT = 2;
public KeyPreviewView(final Context context, final AttributeSet attrs) {
this(context, attrs, 0);
}
public KeyPreviewView(final Context context, final AttributeSet attrs, final int defStyleAttr) {
super(context, attrs, defStyleAttr);
setGravity(Gravity.CENTER);
}
public void setPreviewVisual(final Key key, final KeyboardIconsSet iconsSet,
final KeyDrawParams drawParams) {
// What we show as preview should match what we show on a key top in onDraw().
final int iconId = key.getIconId();
if (iconId != KeyboardIconsSet.ICON_UNDEFINED) {
setCompoundDrawables(null, null, null, key.getPreviewIcon(iconsSet));
setText(null);
return;
}
setCompoundDrawables(null, null, null, null);
setTextColor(drawParams.mPreviewTextColor);
setTextSize(TypedValue.COMPLEX_UNIT_PX, key.selectPreviewTextSize(drawParams));
setTypeface(key.selectPreviewTypeface(drawParams));
// TODO Should take care of temporaryShiftLabel here.
setText(key.getPreviewLabel());
}
// Background state set
private static final int[][][] KEY_PREVIEW_BACKGROUND_STATE_TABLE = {
{ // POSITION_MIDDLE
{},
{ R.attr.state_has_morekeys }
},
{ // POSITION_LEFT
{ R.attr.state_left_edge },
{ R.attr.state_left_edge, R.attr.state_has_morekeys }
},
{ // POSITION_RIGHT
{ R.attr.state_right_edge },
{ R.attr.state_right_edge, R.attr.state_has_morekeys }
}
};
private static final int STATE_NORMAL = 0;
private static final int STATE_HAS_MOREKEYS = 1;
public void setPreviewBackground(final boolean hasMoreKeys, final int position) {
final Drawable background = getBackground();
if (background == null) {
return;
}
final int hasMoreKeysState = hasMoreKeys ? STATE_HAS_MOREKEYS : STATE_NORMAL;
background.setState(KEY_PREVIEW_BACKGROUND_STATE_TABLE[position][hasMoreKeysState]);
}
}