diff options
Diffstat (limited to 'src/com/android/launcher3/AppDrawerScrubber.java')
-rw-r--r-- | src/com/android/launcher3/AppDrawerScrubber.java | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/com/android/launcher3/AppDrawerScrubber.java b/src/com/android/launcher3/AppDrawerScrubber.java new file mode 100644 index 000000000..0ace60da8 --- /dev/null +++ b/src/com/android/launcher3/AppDrawerScrubber.java @@ -0,0 +1,130 @@ +/* + * Copyright (C) 2013 The CyanogenMod 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; + +import android.animation.Animator; +import android.animation.AnimatorListenerAdapter; +import android.content.Context; +import android.support.v7.widget.LinearLayoutManager; +import android.support.v7.widget.RecyclerView; +import android.util.AttributeSet; +import android.view.LayoutInflater; +import android.view.View; +import android.widget.LinearLayout; +import android.widget.SeekBar; +import android.widget.TextView; + +public class AppDrawerScrubber extends LinearLayout { + + private final int SCRUBBER_INDICATOR_DISPLAY_DURATION = 200; + private final float SCRUBBER_INDICATOR_DISPLAY_TRANSLATIONY = 20f; + + private AppDrawerListAdapter mAdapter; + private RecyclerView mListView; + private TextView mScrubberIndicator; + private SeekBar mSeekBar; + private String[] mSections; + private LinearLayoutManager mLayoutManager; + + public AppDrawerScrubber(Context context, AttributeSet attrs) { + super(context, attrs); + init(context); + } + + public AppDrawerScrubber(Context context) { + super(context); + init(context); + } + + public void updateSections() { + mSections = (String[]) mAdapter.getSections(); + mSeekBar.setMax(mSections.length - 1); + } + + public void setSource(RecyclerView listView) { + mListView = listView; + mAdapter = (AppDrawerListAdapter) listView.getAdapter(); + mLayoutManager = (LinearLayoutManager) listView.getLayoutManager(); + } + + public void setScrubberIndicator(TextView scrubberIndicator) { + mScrubberIndicator = scrubberIndicator; + } + + private boolean isReady() { + return mListView != null && + mAdapter != null && + mSections != null; + } + + private void init(Context context) { + LayoutInflater.from(context).inflate(R.layout.scrub_layout, this); + mSeekBar = (SeekBar) findViewById(R.id.scrubber); + + mSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { + @Override + public void onProgressChanged(SeekBar seekBar, final int progress, boolean fromUser) { + if (!isReady()) { + return; + } + resetScrubber(); + + String section = String.valueOf(mSections[progress]); + + if (mScrubberIndicator != null) { + float translateX = (progress * seekBar.getWidth()) / mSections.length; + translateX -= (mScrubberIndicator.getWidth() / 6); // offset for alignment + mScrubberIndicator.setTranslationX(translateX); + mScrubberIndicator.setText(section); + } + + mLayoutManager.smoothScrollToPosition(mListView, null, + mAdapter.getPositionForSection(progress)); + } + + @Override + public void onStartTrackingTouch(SeekBar seekBar) { + resetScrubber(); + if (mScrubberIndicator != null) { + mScrubberIndicator.setAlpha(1f); + mScrubberIndicator.setVisibility(View.VISIBLE); + } + } + + @Override + public void onStopTrackingTouch(SeekBar seekBar) { + resetScrubber(); + if (mScrubberIndicator != null) { + mScrubberIndicator.animate().alpha(0f).translationYBy(20f) + .setDuration(200).setListener(new AnimatorListenerAdapter() { + @Override + public void onAnimationEnd(Animator animation) { + mScrubberIndicator.setVisibility(View.INVISIBLE); + } + }); + } + } + + private void resetScrubber() { + if (mScrubberIndicator != null) { + mScrubberIndicator.animate().cancel(); + mScrubberIndicator.setTranslationY(0f); + } + } + }); + } +}
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