Java Code Examples for android.support.design.widget.AppBarLayout#addOnOffsetChangedListener()

private void initView() {
    ActionBar supportActionBar = getSupportActionBar();
    if (supportActionBar != null) {
        supportActionBar.hide();
    }
    searchbarview = (SearchBarView) findViewById(R.id.searchbarview);
    searchbarview.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            // enter search activity
            Toast.makeText(MainActivity.this, "enter search activity", Toast.LENGTH_SHORT).show();
        }
    });
    AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appbarlayout);
    appBarLayout.addOnOffsetChangedListener(this);
    toolbar = (Toolbar) findViewById(R.id.toolbar);
    RecyclerView mRecyclerView = (RecyclerView) findViewById(R.id.recyclerview);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    mRecyclerView.setVerticalScrollBarEnabled(true);
    mRecyclerView.setNestedScrollingEnabled(false);
    mRecyclerView.setAdapter(new MyAdapter());
}
 

@Override
protected void onResume() {
    super.onResume();
    NfcAdapter nfcAdapter = NfcAdapter.getDefaultAdapter(this);
    if (nfcAdapter != null) {
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, ((Object) this).getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
        IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
        try {
            ndef.addDataType("application/lyrics");
        } catch (IntentFilter.MalformedMimeTypeException e) {
            return;
        }
        IntentFilter[] intentFiltersArray = new IntentFilter[]{ndef,};
        try {
            nfcAdapter.enableForegroundDispatch(this, pendingIntent, intentFiltersArray, null);
        } catch (Exception ignored) {
        }
    }
    updatePrefsChanges();
    AppBarLayout appBarLayout = findViewById(id.appbar);
    appBarLayout.removeOnOffsetChangedListener(this);
    appBarLayout.addOnOffsetChangedListener(this);
}
 

protected void initViews() {
    tvLeft = (TextView) findViewById(R.id.tv_title);
    tvName = (TextView) findViewById(R.id.tv_name);
    ivAvatar = (ImageView) findViewById(R.id.iv_avatar);
    ivCover = (ImageView) findViewById(R.id.iv_avatar_cover);
    ivBlur = (ImageView) findViewById(R.id.iv_title_blur);
    viewBlurMask = findViewById(R.id.view_blur_mask);

    animFromBottom = AnimationUtils.loadAnimation(this, R.anim.slide_from_bottom);
    appBarLayout = (AppBarLayout) findViewById(R.id.main_appbar);
    appBarLayout.addOnOffsetChangedListener(this);

    viewPager = (ViewPager) findViewById(R.id.viewpager);
    tabLayout = (TabLayout) findViewById(R.id.tl_tab_layout);
    initTabTitles();

    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            generateToolbarBlurImg();
        }
    }, 1000);


}
 

public ScrimHelper(AppBarLayout appBarLayout, CollapsingToolbarLayout toolbarLayout) {
    appBarLayout.addOnOffsetChangedListener((appBarLayout1, verticalOffset) -> {
        if (scrimListener == null) return;
        if (appBarLayout1.getHeight() + verticalOffset <= toolbarLayout.getScrimVisibleHeightTrigger()) {
            if (!scrim) {
                scrim = true;
                scrimListener.onScrimChanged(true);
            }
        } else {
            if (scrim) {
                scrim = false;
                scrimListener.onScrimChanged(false);
            }
        }
    });
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    mToolbar = (Toolbar) findViewById(R.id.mainToolbar);
    textToolBarUserName = (TextView) findViewById(R.id.textToolBarUserName);
    textUserName = (TextView) findViewById(R.id.textUserName);
    imageToolBar = (CircleImageView) findViewById(R.id.imageToolBar);
    imageProfile = (CircleImageView) findViewById(R.id.imageProfile);
    mTitleContainer = (RelativeLayout) findViewById(R.id.relativeLayoutTitle);
    mAppBarLayout = (AppBarLayout) findViewById(R.id.mainAppbar);
    webView = (WebView) findViewById(R.id.webView);
    mAppBarLayout.addOnOffsetChangedListener(this);
    startAlphaAnimation(textToolBarUserName, 0, View.INVISIBLE);
    startAlphaAnimation(imageToolBar, 0, View.INVISIBLE);


    webView.setWebViewClient(new MyWebViewClient());
    webView.getSettings().setJavaScriptEnabled(true);
    webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
    webView.loadUrl("http://docs.google.com/gview?embedded=true&url=https://static.googleusercontent.com/media/www.google.com/en//pdf/google_ftc_dec2012.pdf");
    webView.getSettings().setLoadsImagesAutomatically(true);




}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_collapsing_toolbar_layout);
    mIvPlaceholder = (ImageView) findViewById(R.id.main_iv_placeholder);
    mLlTitleContainer = (LinearLayout) findViewById(R.id.main_ll_title_container);
    mFlTitleContainer = (FrameLayout) findViewById(R.id.main_fl_title);
    mAblAppBar = (AppBarLayout) findViewById(R.id.main_abl_app_bar);
    mTvToolbarTitle = (TextView) findViewById(R.id.main_tv_toolbar_title);
    mTbToolbar = (Toolbar) findViewById(R.id.main_tb_toolbar);
    mTbToolbar.setTitle("");

    // AppBar的监听
    mAblAppBar.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
            int maxScroll = appBarLayout.getTotalScrollRange();
            float percentage = (float) Math.abs(verticalOffset) / (float) maxScroll;
            handleAlphaOnTitle(percentage);
            handleToolbarTitleVisibility(percentage);
        }
    });

    findViewById(R.id.small_photo).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            startActivity(new Intent(CollapsingToolbarLayoutActivity.this, SettingsActivity.class));
        }
    });

    initParallaxValues(); // 自动滑动效果
}
 

private void initSelfView() {
    toolbar = (Toolbar) findViewById(R.id.sheet_detail_toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    toTop = (FloatingActionButton) findViewById(R.id.sheet_detail_top);
    initToTopPos();

    songList = (RecyclerView) findViewById(R.id.sheet_detail_songs_list);
    appBarLayout = (AppBarLayout) findViewById(R.id.sheet_detail_app_bar);
    collapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.sheet_detail_toolbar_layout);
    barStateChangeListener = new AppBarStateChangeListener() {
        @Override
        public void onStateChanged(AppBarLayout appBarLayout, State state) {
            switch (state) {
                case EXPANDED:
                    collapsingToolbarLayout.setTitle(" ");
                    songList.setNestedScrollingEnabled(false);
                    transToTopBt(true);
                    break;
                case COLLAPSED:
                    collapsingToolbarLayout.setTitle(infoController.getTitle());
                    songList.setNestedScrollingEnabled(true);
                    toTop.setVisibility(View.VISIBLE);
                    transToTopBt(false);
                    break;
                case IDLE:
                    collapsingToolbarLayout.setTitle(" ");
                    break;
            }
        }
    };
    appBarLayout.addOnOffsetChangedListener(barStateChangeListener);

}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scrolling);
    final Toolbar mToolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(mToolbar);

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                    .setAction("Action", null).show();
        }
    });

    AppBarLayout mAppBarLayout = (AppBarLayout) findViewById(R.id.app_bar);
    mAppBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
        boolean isShow = false;
        int scrollRange = -1;

        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
            if (scrollRange == -1) {
                scrollRange = appBarLayout.getTotalScrollRange();
            }
            if (scrollRange + verticalOffset == 0) {
                isShow = true;
                showOption(R.id.action_info);
            } else if (isShow) {
                isShow = false;
                hideOption(R.id.action_info);
            }
        }
    });
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_view_pager_new);
    mView = findViewById(R.id.view);
    ll_content = findViewById(R.id.ll_content);
    mViewPager = (ViewPager) findViewById(R.id.viewpager);
    mAppBarLayout = (AppBarLayout) findViewById(R.id.appBar);

    mView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {


        @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
        @Override
        public void onGlobalLayout() {
            mView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            mHeight = findViewById(R.id.headview).getHeight();
            mHeightContent = ll_content.getHeight() - findViewById(R.id.tabs).getHeight();

            WriteLogUtil.i(" mHeight=" + mHeight);
            WriteLogUtil.i(" mHeightContent=" + mHeightContent);
        }
    });

    mAppBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
            int abs = Math.abs(verticalOffset);
        }
    });


    setupViewPager();
}
 

private void initAppBarLayout(){
    LayoutTransition mTransition = new LayoutTransition();
    /**
     * 添加View时过渡动画效果
     */
    ObjectAnimator addAnimator = ObjectAnimator.ofFloat(null, "translationY", 0, 1.f).
            setDuration(mTransition.getDuration(LayoutTransition.APPEARING));
    mTransition.setAnimator(LayoutTransition.APPEARING, addAnimator);

    //header layout height
    final int headerHeight = getResources().getDimensionPixelOffset(R.dimen.header_height);
    mAppBarLayout = (AppBarLayout) findViewById(R.id.appbar);
    mAppBarLayout.setLayoutTransition(mTransition);

    mAppBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
        @Override
        public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
            verticalOffset = Math.abs(verticalOffset);
            if ( verticalOffset >= headerHeight ){
                isHideHeaderLayout = true;
                //当偏移量超过顶部layout的高度时，我们认为他已经完全移动出屏幕了
                new Handler().postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        AppBarLayout.LayoutParams mParams = (AppBarLayout.LayoutParams) headerLayout.getLayoutParams();
                        mParams.setScrollFlags(0);
                        headerLayout.setLayoutParams(mParams);
                        headerLayout.setVisibility(View.GONE);
                    }
                },100);
            }
        }
    });
}
 

@Override protected void onAttachedToWindow() {
    super.onAttachedToWindow();
    if (getContext() instanceof Activity) {
        appBarLayout = (AppBarLayout) ((Activity) getContext()).findViewById(R.id.appbar);
        if (appBarLayout != null) {
            appBarLayout.addOnOffsetChangedListener(this);
        }
    }
}
 

private void initView() {
    toolbar= (Toolbar) findViewById(R.id.tool_bar);
    setUpCommonBackTooblBar(R.id.tool_bar, "视频播放");
    appBarLayout = (AppBarLayout) findViewById(R.id.appbar);
    appBarLayout.addOnOffsetChangedListener(this);
    CollapsingToolbarLayout collapsing_toolbar = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
    ViewCompat.requestApplyInsets(collapsing_toolbar);
    collapsing_toolbar.setTitleEnabled(false);
    collapsing_toolbar.setExpandedTitleColor(Color.TRANSPARENT);
    resetCollapsingToolbarLayout(collapsing_toolbar);
    mVideoPlayHeader = new VideoPlayHeader(this, findViewById(R.id.video_header));
    initRecyclerView();
}
 

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    mSearchView = (FloatingSearchView) view.findViewById(R.id.floating_search_view);
    mAppBar = (AppBarLayout) view.findViewById(R.id.appbar);

    mAppBar.addOnOffsetChangedListener(this);

    setupDrawer();
    setupSearchBar();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_custom_behavior);

    mHeader = findViewById(R.id.activity_custom_behavior_header);

    AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appbar);
    appBarLayout.addOnOffsetChangedListener(this);

    ImageView teamImage = (ImageView) findViewById(R.id.custom_behavior_image_teamA);
    teamImage.setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_IN);

}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scrolling);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    mCollapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.toolbar_layout);
    mCollapsingToolbarLayout.setTitle("XPlayer");

    mAppBarLayout = (AppBarLayout) findViewById(R.id.app_bar);
    mAppBarLayout.addOnOffsetChangedListener(this);

    videoUrl = "http://9890.vod.myqcloud.com/9890_4e292f9a3dd011e6b4078980237cc3d3.f30.mp4";

    mSmallVideoView = findViewById(R.id.drag_video_view);
    mVideoView = findViewById(R.id.video_view);

    mMediaPlayer = XMediaPlayerDelegate.getInstance();

    mSmallVideoView.setMediaPlayer(mMediaPlayer);
    mSmallVideoView.setDisplayAspectRatio(IXRenderView.AR_MATCH_PARENT);

    mVideoView.setMediaPlayer(mMediaPlayer);
    mVideoView.setDisplayAspectRatio(IXRenderView.AR_MATCH_PARENT);

    mMediaPlayer.setVideoPath(videoUrl);
    mMediaPlayer.setLooping(false);
    mMediaPlayer.play();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_alipay_home);

    StatusBarUtil.setColor(AlipayHomeActivity.this, ContextCompat.getColor(this,R.color.blue_black), 0);

    //AppBarLayout
    abl_bar = (AppBarLayout) findViewById(R.id.abl_bar);
    abl_bar.addOnOffsetChangedListener(this);
    //顶部搜索布局
    include_toolbar_search = findViewById(R.id.include_toolbar_search);
    //扫一扫 付一付 聊一聊 咻一咻 的小图标布局
    include_toolbar_small = findViewById(R.id.include_toolbar_small);


    //顶部搜索布局遮罩
    v_toolbar_search_mask = findViewById(R.id.v_toolbar_search_mask);
    //扫一扫 付一付 聊一聊 咻一咻 的大图标布局遮罩
    v_title_big_mask = findViewById(R.id.v_title_big_mask);
    //扫一扫 付一付 聊一聊 咻一咻 的大图标布局遮罩
    v_toolbar_small_mask = findViewById(R.id.v_toolbar_small_mask);
    //背景颜色
    mMaskColor = getResources().getColor(R.color.blue_dark);


    mRecyclerView = findViewById(R.id.list);
    //init data
    ArrayList<ItemModel> dataList = new ArrayList<>();
    for (int i = 0; i < 10; i++) {
        ItemModel itemModel = new ItemModel();
        itemModel.title = "item" + i;
        dataList.add(itemModel);
    }

    mDataAdapter = new DataAdapter(this);
    mDataAdapter.setDataList(dataList);

    mLRecyclerViewAdapter = new LRecyclerViewAdapter(mDataAdapter);
    mRecyclerView.setAdapter(mLRecyclerViewAdapter);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    //禁用自动加载更多功能
    mRecyclerView.setLoadMoreEnabled(false);

    SampleFooter sampleFooter = new SampleFooter(this);
    //add a FooterView
    mLRecyclerViewAdapter.addFooterView(sampleFooter);

    mRecyclerView.setOnRefreshListener(new OnRefreshListener() {
        @Override
        public void onRefresh() {

            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    mRecyclerView.refreshComplete(10);
                }
            }, 800);

        }
    });

}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_four2);
    mAppBarLayout = (AppBarLayout) findViewById(R.id.mainappbar);
    mViewPager = (ViewPager) findViewById(R.id.viewpager);

    mTitle =  findViewById(R.id.rl_title);
    mTitle.setVisibility(View.GONE);


    setupViewPager();

    AppBarStateChangeListener listener = new AppBarStateChangeListener();
    listener.setOnStateChangedListener(new AppBarStateChangeListener.OnStateChangedListener() {
        @Override
        public void onExpanded() {
            Log.i(TAG, "onExpanded: =");
            mTitle.setVisibility(View.GONE);
        }

        @Override
        public void onCollapsed() {
            Log.i(TAG, "onCollapsed: =");
            mTitle.setVisibility(View.VISIBLE);
        }

        @Override
        public void onInternediateFromExpand() {
            Log.i(TAG, "onInternediateFromExpand: =");
            mTitle.setVisibility(View.GONE);
        }

        @Override
        public void onInternediateFromCollapsed() {
            Log.i(TAG, "onInternediateFromCollapsed: =");
            mTitle.setVisibility(View.GONE);
        }

        @Override
        public void onInternediate() {

        }
    });
    mAppBarLayout.addOnOffsetChangedListener(listener);
}
 

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    super.onLayout(changed, l, t, r, b);

    appBarLayout = (AppBarLayout) findViewById(R.id.gallery_coordinator_appbarlayout);
    if(appBarLayout == null) {
        throw new IllegalStateException("No AppBarLayout found in BlurZoomCoordinatorLayout");
    }

    scrollView = findViewById(R.id.gallery_coordinator_scroll);
    if(scrollView == null) {
        throw new IllegalStateException("No scrolling view found in BlurZoomCoordinatorLayout");
    }

    toolbar = findViewById(R.id.gallery_coordinator_toolbar);
    if(toolbar == null) {
        throw new IllegalStateException("No toolbar found in BlurZoomCoordinatorLayout");
    }

    placeholder = findViewById(R.id.gallery_coordinator_placeholder);
    if(placeholder == null) {
        throw new IllegalStateException("No placeholder view found in scrolling view in BlurZoomCoordinatorLayout");
    }

    galleryContainerView = findViewById(R.id.gallery_coordinator_gallery_container);
    if(galleryContainerView == null) {
        throw new IllegalStateException("No gallery container view found in BlurZoomCoordinatorLayout");
    }

    galleryView = galleryContainerView.findViewById(R.id.gallery_coordinator_gallery);
    if(galleryView == null) {
        throw new IllegalStateException("No gallery view found in container in BlurZoomCoordinatorLayout");
    }

    prepareViews();

    prepareHeights();

    appBarLayout.addOnOffsetChangedListener(offsetChangedListener);

    appBarLayout.setOnClickListener(expandListener);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // Set theme
    prefs = PreferenceManager.getDefaultSharedPreferences(this);
    String theme = SharedPrefsManager.getTheme(prefs);
    switch (theme) {
        case SharedPrefsManager.THEME_SEPIA:
            setTheme(R.style.AppTheme_Sepia);
            break;
        case SharedPrefsManager.THEME_DARK:
            setTheme(R.style.AppTheme_Dark);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                getWindow().setStatusBarColor(getResources().getColor(R.color.grey_900));
            }
            break;
        case SharedPrefsManager.THEME_AMOLED_BLACK:
            setTheme(R.style.AppTheme_AMOLEDBlack);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                getWindow().setStatusBarColor(getResources().getColor(android.R.color.black));
            }
            break;
    }
    setContentView(R.layout.activity_comments);
    Firebase.setAndroidContext(this);
    appbar = (AppBarLayout) findViewById(R.id.appbar);
    appbar.addOnOffsetChangedListener(this);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    final ActionBar actionBar = getSupportActionBar();
    if (actionBar != null) {
        actionBar.setTitle("Comments");
        actionBar.setHomeButtonEnabled(true);
        actionBar.setDisplayHomeAsUpEnabled(true);
    }

    mWindow = new PopupFloatingWindow(this, toolbar);
    mFab = (FloatingScrollDownButton) findViewById(R.id.fab);
    coordinatorLayout = (CoordinatorLayout) findViewById(R.id.coordinator_layout);
    layoutReply = (LinearLayout) findViewById(R.id.layout_reply);
    btnReplySend = (FloatingActionButton) findViewById(R.id.btn_reply_send);
    etReply = (EditText) findViewById(R.id.et_reply);

    Intent intent = getIntent();
    CommentsFragment commentsFragment = null;
    Parcelable postParcel = intent.getParcelableExtra(Constants.KEY_POST_PARCEL);
    if (postParcel != null) {
        commentsFragment = CommentsFragment.newInstance(postParcel,
            intent.getBooleanExtra(Constants.KEY_IS_BOOKMARKED, false));
        Post post = Parcels.unwrap(postParcel);
        //FIXME how the url could be null?!
        mUrl = (post.getUrl() != null ? post.getUrl() : "https://news.ycombinator.com/");
        mPostId = post.getId();
    } else {
        final Uri data = intent.getData();
        if (data != null && data.getQueryParameter("id") != null) {
            long storyId = Long.parseLong(data.getQueryParameter("id"));
            commentsFragment = CommentsFragment.newInstance(storyId);
            mPostId = storyId;
        }
    }

    if (savedInstanceState == null) {
        if (commentsFragment != null) {
            getFragmentManager().beginTransaction()
                .add(R.id.container, commentsFragment, Constants.FRAGMENT_TAG_COMMENT)
                .commit();
        }
    }

    mDataManager = new DataManager();
    mCompositeSubscription = new CompositeSubscription();
}