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author | Sunny Goyal <sunnygoyal@google.com> | 2016-10-18 20:57:46 +0000 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2016-10-18 20:57:46 +0000 |
commit | 645760793dc67cd73e5d3dfcb069a56b7f8e0d10 (patch) | |
tree | ef8f5985edfe76c85ec65bdb1c0cd2f9a0aeac59 /src/com/android/launcher3/qsb/QsbBlockerView.java | |
parent | d25e2f5e4259fbdaa4e645fce3d26ba6225e33ba (diff) | |
parent | 2e013ea7f6df746449e85c6ff27a30e581a2082e (diff) | |
download | android_packages_apps_Trebuchet-645760793dc67cd73e5d3dfcb069a56b7f8e0d10.tar.gz android_packages_apps_Trebuchet-645760793dc67cd73e5d3dfcb069a56b7f8e0d10.tar.bz2 android_packages_apps_Trebuchet-645760793dc67cd73e5d3dfcb069a56b7f8e0d10.zip |
Merge "Alienating QSB" into ub-launcher3-master
Diffstat (limited to 'src/com/android/launcher3/qsb/QsbBlockerView.java')
-rw-r--r-- | src/com/android/launcher3/qsb/QsbBlockerView.java | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/com/android/launcher3/qsb/QsbBlockerView.java b/src/com/android/launcher3/qsb/QsbBlockerView.java new file mode 100644 index 000000000..5379336de --- /dev/null +++ b/src/com/android/launcher3/qsb/QsbBlockerView.java @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2016 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.launcher3.qsb; + +import android.animation.AnimatorSet; +import android.animation.ObjectAnimator; +import android.animation.ValueAnimator; +import android.animation.ValueAnimator.AnimatorUpdateListener; +import android.content.Context; +import android.graphics.Canvas; +import android.graphics.Color; +import android.graphics.Paint; +import android.util.AttributeSet; +import android.view.View; + +import com.android.launcher3.Launcher; +import com.android.launcher3.Workspace; +import com.android.launcher3.Workspace.OnStateChangeListener; +import com.android.launcher3.Workspace.State; + +/** + * A simple view used to show the region blocked by QSB during drag and drop. + */ +public class QsbBlockerView extends View implements OnStateChangeListener { + + private static final int VISIBLE_ALPHA = 100; + + private final Paint mBgPaint; + + public QsbBlockerView(Context context, AttributeSet attrs) { + super(context, attrs); + + mBgPaint = new Paint(Paint.ANTI_ALIAS_FLAG); + mBgPaint.setColor(Color.WHITE); + mBgPaint.setAlpha(0); + } + + @Override + protected void onAttachedToWindow() { + super.onAttachedToWindow(); + + Workspace w = Launcher.getLauncher(getContext()).getWorkspace(); + w.setOnStateChangeListener(this); + prepareStateChange(w.getState(), null); + } + + @Override + public void prepareStateChange(State toState, AnimatorSet targetAnim) { + int finalAlpha = getAlphaForState(toState); + if (targetAnim == null) { + mBgPaint.setAlpha(finalAlpha); + invalidate(); + } else { + ObjectAnimator anim = ObjectAnimator.ofArgb(mBgPaint, "alpha", finalAlpha); + anim.addUpdateListener(new AnimatorUpdateListener() { + @Override + public void onAnimationUpdate(ValueAnimator valueAnimator) { + invalidate(); + } + }); + targetAnim.play(anim); + } + } + + private static int getAlphaForState(State state) { + switch (state) { + case SPRING_LOADED: + case OVERVIEW: + case OVERVIEW_HIDDEN: + return VISIBLE_ALPHA; + } + return 0; + } + + @Override + protected void onDraw(Canvas canvas) { + canvas.drawPaint(mBgPaint); + } +} |