android.support.design.widget.AppBarLayout#getTotalScrollRange

Source File: AppBarStateChangeListener.java From AmazingAvatar with MIT License

6 votes

@Override
public final void onOffsetChanged(AppBarLayout appBarLayout, int i) {
	if (i == 0) {
		if (mCurrentState != State.EXPANDED) {
			onStateChanged(appBarLayout, State.EXPANDED);
		}
		mCurrentState = State.EXPANDED;
	} else if (Math.abs(i) >= appBarLayout.getTotalScrollRange()) {
		if (mCurrentState != State.COLLAPSED) {
			onStateChanged(appBarLayout, State.COLLAPSED);
		}
		mCurrentState = State.COLLAPSED;
	} else {
		if (mCurrentState != State.IDLE) {
			onStateChanged(appBarLayout, State.IDLE);
		}
		mCurrentState = State.IDLE;
	}
	float offset = Math.abs(i / (float) appBarLayout.getTotalScrollRange());
	if (offset != mCurrentOffset) {
		mCurrentOffset = offset;
		onOffsetChanged(mCurrentState, offset);
	}
}

Source File: AppBarStateChangeListener.java From LazyRecyclerAdapter with MIT License

6 votes

@Override
public final void onOffsetChanged(AppBarLayout appBarLayout, int i) {
    if (i == 0) {
        if (mCurrentState != State.EXPANDED) {
            onStateChanged(appBarLayout, State.EXPANDED);
        }
        mCurrentState = State.EXPANDED;
    } else if (Math.abs(i) >= appBarLayout.getTotalScrollRange()) {
        if (mCurrentState != State.COLLAPSED) {
            onStateChanged(appBarLayout, State.COLLAPSED);
        }
        mCurrentState = State.COLLAPSED;
    } else {
        if (mCurrentState != State.IDLE) {
            onStateChanged(appBarLayout, State.IDLE);
        }
        mCurrentState = State.IDLE;
    }
}

Source File: AppBarStateChangeEvent.java From LQRBiliBlili with MIT License

6 votes

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    if (verticalOffset == 0) {
        if (mCurrentState != State.EXPANDED) {
            onStateChanged(appBarLayout, State.EXPANDED, verticalOffset);
        }
        mCurrentState = State.EXPANDED;
    } else if (Math.abs(verticalOffset) >= appBarLayout.getTotalScrollRange()) {
        if (mCurrentState != State.COLLAPSED) {
            onStateChanged(appBarLayout, State.COLLAPSED, verticalOffset);
        }
        mCurrentState = State.COLLAPSED;
    } else {
        if (mCurrentState != State.IDLE) {
            onStateChanged(appBarLayout, State.IDLE, verticalOffset);
        }
        mCurrentState = State.IDLE;
    }
}

Source File: AppBarStateChangeListener.java From Capstone-Project with MIT License

6 votes

@Override
public final void onOffsetChanged(AppBarLayout appBarLayout, int i) {
    if (i == 0) {
        if (mCurrentState != State.EXPANDED) {
            onStateChanged(appBarLayout, State.EXPANDED);
        }
        mCurrentState = State.EXPANDED;
    } else if (Math.abs(i) >= appBarLayout.getTotalScrollRange()) {
        if (mCurrentState != State.COLLAPSED) {
            onStateChanged(appBarLayout, State.COLLAPSED);
        }
        mCurrentState = State.COLLAPSED;
    } else {
        if (mCurrentState != State.IDLE) {
            onStateChanged(appBarLayout, State.IDLE);
        }
        mCurrentState = State.IDLE;
    }
}

Source File: SixStickyViewActivity.java From YCRefreshView with Apache License 2.0

6 votes

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    int totalScrollRange = appBarLayout.getTotalScrollRange();
    if (verticalOffset == 0) {
        if (state != STATES.EXPANDED) {
            //修改状态标记为展开
            state = STATES.EXPANDED;
            RefreshLogUtils.e("OnOffsetChangedListener"+ "修改状态标记为展开");
        }
    } else if (Math.abs(verticalOffset) >= totalScrollRange) {
        if (state != STATES.COLLAPSED) {
            //修改状态标记为折叠
            state = STATES.COLLAPSED;
            RefreshLogUtils.e("OnOffsetChangedListener"+ "修改状态标记为折叠");
        }
    } else {
        if (state != STATES.INTERMEDIATE) {
            //修改状态标记为中间
            state = STATES.INTERMEDIATE;
            //代码设置是否拦截事件
            RefreshLogUtils.e("OnOffsetChangedListener"+ "修改状态标记为中间");
        }
        
    }
}

Source File: AppBarStateChangeListener.java From LRecyclerView with Apache License 2.0

6 votes

@Override
public final void onOffsetChanged(AppBarLayout appBarLayout, int i) {
    if (i == 0) {
        if (mCurrentState != State.EXPANDED) {
            onStateChanged(appBarLayout, State.EXPANDED);
        }
        mCurrentState = State.EXPANDED;
    } else if (Math.abs(i) >= appBarLayout.getTotalScrollRange()) {
        if (mCurrentState != State.COLLAPSED) {
            onStateChanged(appBarLayout, State.COLLAPSED);
        }
        mCurrentState = State.COLLAPSED;
    } else {
        if (mCurrentState != State.IDLE) {
            onStateChanged(appBarLayout, State.IDLE);
        }
        mCurrentState = State.IDLE;
    }
}

Source File: AppBarStateChangeListener.java From Musicoco with Apache License 2.0

6 votes

@Override
public final void onOffsetChanged(AppBarLayout appBarLayout, int i) {
    if (i == 0) {
        if (mCurrentState != State.EXPANDED) {
            onStateChanged(appBarLayout, State.EXPANDED);
        }
        mCurrentState = State.EXPANDED;
    } else if (Math.abs(i) >= appBarLayout.getTotalScrollRange()) {
        if (mCurrentState != State.COLLAPSED) {
            onStateChanged(appBarLayout, State.COLLAPSED);
        }
        mCurrentState = State.COLLAPSED;
    } else {
        if (mCurrentState != State.IDLE) {
            onStateChanged(appBarLayout, State.IDLE);
        }
        mCurrentState = State.IDLE;
    }
}

Source File: MyCollapsingToolbarLayout.java From nono-android with GNU General Public License v3.0

6 votes

@Override
public void onOffsetChanged(AppBarLayout layout, int verticalOffset) {
    final int scrollRange = layout.getTotalScrollRange();

    //if (Math.abs(verticalOffset) == scrollRange) {
    //    // If we have some pinned children, and we're offset to only show those views,
    //    // we want to be elevate
    //
    //
      ViewCompat.setElevation(layout, layout.getTargetElevation());
    //} else {
    //    // Otherwise, we're inline with the content
    //    ViewCompat.setElevation(layout, 0f);
    //}

    if(Math.abs(verticalOffset)>=getHeight()-56*getResources().getDisplayMetrics().density){
        if(listener!=null){
            listener.collapsed();
        }
    }else {
        if(listener!=null){
            listener.expand();
        }
    }
}

Source File: AppBarStateChangeListener.java From Cook-It-Android-XML-Template with MIT License

6 votes

@Override
public final void onOffsetChanged(AppBarLayout appBarLayout, int i) {
    if (i == 0) {
        if (mCurrentState != State.EXPANDED) {
            onStateChanged(appBarLayout, State.EXPANDED);
        }
        mCurrentState = State.EXPANDED;
    } else if (Math.abs(i) >= appBarLayout.getTotalScrollRange()) {
        if (mCurrentState != State.COLLAPSED) {
            onStateChanged(appBarLayout, State.COLLAPSED);
        }
        mCurrentState = State.COLLAPSED;
    } else {
        if (mCurrentState != State.IDLE) {
            onStateChanged(appBarLayout, State.IDLE);
        }
        mCurrentState = State.IDLE;
    }
}

Source File: UserCenterActivity.java From MaoWanAndoidClient with Apache License 2.0

6 votes

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    //获取最大偏移值
    int scrollRangle = appBarLayout.getTotalScrollRange();
    ivParallax.setTranslationY(verticalOffset);
    /**
     * 这个数值可以自己定义 显示 toolbar 用户名称
     */
    if (verticalOffset < -250) {
        tvTbNickName.setVisibility(View.VISIBLE);
    } else {
        tvTbNickName.setVisibility(View.GONE);
    }
    int mAlpha = (int) Math.abs(255f / scrollRangle * verticalOffset);
    int color = ContextCompat.getColor(appBarLayout.getContext(), R.color.colorPrimary)&0x00ffffff;
    StatusBarUtil.setColorNoTranslucentLightMode(this,((mAlpha) << 24) | color);
    //顶部title渐变效果
    mToolBar.setBackgroundColor(((mAlpha) << 24) | color);
}

Source File: ScrollController.java From GpCollapsingToolbar with Apache License 2.0

6 votes

public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    if (appBarLayout != null) {
        int scrollRange = appBarLayout.getTotalScrollRange();
        if (mAppBarScrollRange == null || mAppBarScrollRange != scrollRange) {
            mAppBarScrollRange = scrollRange;
        }
    }

    int absOffset = Math.abs(verticalOffset);
    StringBuilder sb = new StringBuilder();
    if (mPreviousVerticalOffset == null) {
        mPreviousVerticalOffset = absOffset;
        sb.append("Starting offset change detection\r\n");
    } else if (absOffset < mPreviousVerticalOffset) {
        sb.append("Scroll UP!");
    } else if (absOffset > mPreviousVerticalOffset) {
        sb.append("Scroll DOWN!");
    }
    calculateDistance(appBarLayout, absOffset, mPreviousVerticalOffset);
    mPreviousVerticalOffset = absOffset;
}

Source File: FixAppBarLayoutBehavior.java From px-android with MIT License

5 votes

private void stopNestedScrollIfNeeded(final int dy,
    @NonNull final AppBarLayout child,
    @NonNull final View target, final int type) {

    if (type == ViewCompat.TYPE_NON_TOUCH) {
        final int currOffset = getTopAndBottomOffset();
        if ((dy < 0 && currOffset == 0)
            || (dy > 0 && currOffset == -child.getTotalScrollRange())) {
            ViewCompat.stopNestedScroll(target, ViewCompat.TYPE_NON_TOUCH);
        }
    }
}

Source File: ThreadListFragment.java From TLint with Apache License 2.0

5 votes

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    if (verticalOffset == 0 || verticalOffset == -appBarLayout.getTotalScrollRange()) {
        refreshLayout.setEnabled(true);
    } else {
        refreshLayout.setEnabled(false);
    }
}

Source File: AlipayHomeActivity.java From LRecyclerView with Apache License 2.0

5 votes

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    Log.d("lzx", "verticalOffset=" + verticalOffset);
    //720*1080手机 verticalOffset取值范围[0-200]px
    int absVerticalOffset = Math.abs(verticalOffset);//AppBarLayout竖直方向偏移距离px
    int totalScrollRange = appBarLayout.getTotalScrollRange();//AppBarLayout总的距离px
    //背景颜色转化成RGB的渐变色
    int argb = Color.argb(absVerticalOffset, Color.red(mMaskColor), Color.green(mMaskColor), Color.blue(mMaskColor));
    int argbDouble = Color.argb(absVerticalOffset * 2, Color.red(mMaskColor), Color.green(mMaskColor), Color.blue(mMaskColor));
    //appBarLayout上滑一半距离后小图标应该由渐变到全透明
    int title_small_offset = (200 - absVerticalOffset) < 0 ? 0 : 200 - absVerticalOffset;
    int title_small_argb = Color.argb(title_small_offset * 2, Color.red(mMaskColor),
            Color.green(mMaskColor), Color.blue(mMaskColor));
    //appBarLayout上滑不到一半距离
    if (absVerticalOffset <= totalScrollRange / 2) {
        include_toolbar_search.setVisibility(View.VISIBLE);
        include_toolbar_small.setVisibility(View.GONE);
        //为了和下面的大图标渐变区分,乘以2倍渐变
        v_toolbar_search_mask.setBackgroundColor(argbDouble);
    } else {
        include_toolbar_search.setVisibility(View.GONE);
        include_toolbar_small.setVisibility(View.VISIBLE);
        //appBarLayout上滑一半距离后小图标应该由渐变到全透明
        v_toolbar_small_mask.setBackgroundColor(title_small_argb);

    }
    //上滑时遮罩由全透明到半透明
    v_title_big_mask.setBackgroundColor(argb);
}

Source File: AppBarStateChangeListener.java From RetrofitGO with Apache License 2.0

5 votes

@Override
public final void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    //当前滚动了多少高度
    int mVerticalOffset = Math.abs(verticalOffset);
    //AppBarLayout总共高度
    int totalScrollRange = appBarLayout.getTotalScrollRange();

    if (verticalOffset == 0) {
        if (mCurrentState != State.EXPANDED) {
            onStateChanged(appBarLayout, State.EXPANDED, verticalOffset);
        }
        mCurrentState = State.EXPANDED;

    } else if (mVerticalOffset >= totalScrollRange) {
        if (mCurrentState != State.COLLAPSED) {
            onStateChanged(appBarLayout, State.COLLAPSED, verticalOffset);
        }
        mCurrentState = State.COLLAPSED;

    } else if (mVerticalOffset > (totalScrollRange/2 - middleRangeValue)
            && mVerticalOffset < (totalScrollRange/2 + middleRangeValue)){
        if (mCurrentState != State.MIDDLE) {
            onStateChanged(appBarLayout, State.MIDDLE, verticalOffset);
        }
        mCurrentState = State.MIDDLE;

    } else {
        if (mCurrentState != State.IDLE) {
            onStateChanged(appBarLayout, State.IDLE, verticalOffset);
        }
        mCurrentState = State.IDLE;
    }
}

Source File: UserActivity.java From materialup with Apache License 2.0

5 votes

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    int maxScroll = appBarLayout.getTotalScrollRange();
    float percentage = (float) Math.abs(verticalOffset) / (float) maxScroll;

    handleAlphaOnTitle(percentage);
    handleToolbarTitleVisibility(percentage);
}

Source File: ScrollingActivity.java From XPlayer2 with Apache License 2.0

4 votes

@Override
    public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
//        MLog.i("verticalOffset = " + verticalOffset);
        if (verticalOffset == 0) {
            if (mAppBarLayoutCurrentState != APP_BAR_LAYOUT_EXPANDED) {
                mCollapsingToolbarLayout.setTitle("");

                if (mVideoView.getSurface() != null) {
                    mMediaPlayer.setSurface(mVideoView.getSurface());
                }

                if (mSmallVideoView.getVisibility() == View.VISIBLE) {
                    mSmallVideoView.setVisibility(View.GONE);
                }

                mAppBarLayoutCurrentState = APP_BAR_LAYOUT_EXPANDED;
            }
        } else if (Math.abs(verticalOffset) >= appBarLayout.getTotalScrollRange()) {
            if (mAppBarLayoutCurrentState != APP_BAR_LAYOUT_COLLAPSED) {
                mCollapsingToolbarLayout.setTitle("大小视频显示组件互动");

                if (mSmallVideoView.getVisibility() == View.GONE) {
                    mSmallVideoView.setVisibility(View.VISIBLE);
                    // 重置到初始化所在位置
                    mSmallVideoView.restorePosition();

                    if (mSmallVideoView.getSurface() != null) {
                        mMediaPlayer.setSurface(mSmallVideoView.getSurface());
                    }
                }

                mAppBarLayoutCurrentState = APP_BAR_LAYOUT_COLLAPSED;
            }
        } else {
            if (mAppBarLayoutCurrentState != APP_BAR_LAYOUT_IDLE) {
                if (mAppBarLayoutCurrentState == APP_BAR_LAYOUT_COLLAPSED) {
                    // 中间状态
                    mSmallVideoView.postDelayed(new Runnable() {
                        @Override
                        public void run() {
                            if (mVideoView.getSurface() != null) {
                                mMediaPlayer.setSurface(mVideoView.getSurface());
                            }

                            if (mSmallVideoView.getVisibility() == View.VISIBLE) {
                                mSmallVideoView.setVisibility(View.GONE);
                            }
                        }
                    }, 50);
                }
                mAppBarLayoutCurrentState = APP_BAR_LAYOUT_IDLE;
            }
        }
    }

Source File: ProfileActivity.java From AndroidPlusJava with GNU General Public License v3.0

4 votes

@Override
public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
    int maxScroll = appBarLayout.getTotalScrollRange();
    float percentage = (float) Math.abs(verticalOffset) / (float) maxScroll;
    mProfileInfo.setAlpha(1 - percentage);
}

Source File: FixScrollingFooterBehavior.java From IslamicLibraryAndroid with GNU General Public License v3.0

4 votes

private int calculateBottomPadding(@NonNull AppBarLayout dependency) {
    final int totalScrollRange = dependency.getTotalScrollRange();
    return totalScrollRange + dependency.getTop();
}

Source File: FlexibleToolbarLayout.java From AppCompat-Extension-Library with Apache License 2.0

4 votes

@Override
public void onOffsetChanged(AppBarLayout layout, int verticalOffset) {
    mCurrentOffset = verticalOffset;

    final int insetTop = mLastInsets != null ? mLastInsets.getSystemWindowInsetTop() : 0;
    final int scrollRange = layout.getTotalScrollRange();

    for (int i = 0, z = getChildCount(); i < z; i++) {
        final View child = getChildAt(i);
        final LayoutParams lp = (LayoutParams) child.getLayoutParams();
        final ViewOffsetHelper offsetHelper = getViewOffsetHelper(child);

        switch (lp.mCollapseMode) {
            case LayoutParams.COLLAPSE_MODE_PIN:
                if (getHeight() - insetTop + verticalOffset >= child.getHeight()) {
                    offsetHelper.setTopAndBottomOffset(-verticalOffset);
                }
                break;
            case LayoutParams.COLLAPSE_MODE_PARALLAX:
                offsetHelper.setTopAndBottomOffset(
                        Math.round(-verticalOffset * lp.mParallaxMult));
                break;
        }
    }

    // Show or hide the scrims if needed
    if (mContentScrim != null || mStatusBarScrim != null) {
        setScrimsShown(getHeight() + verticalOffset < getScrimTriggerOffset() + insetTop);
    }

    if (mStatusBarScrim != null && insetTop > 0) {
        ViewCompat.postInvalidateOnAnimation(FlexibleToolbarLayout.this);
    }

    // Update the collapsing text's fraction
    final int expandRange = getHeight() - ViewCompat.getMinimumHeight(
            FlexibleToolbarLayout.this) - insetTop;
    float fraction = Math.abs(verticalOffset) / (float) expandRange;
    mTitleCollapsingTextHelper.setExpansionFraction(fraction);
    mSubtitleCollapsingTextHelper.setExpansionFraction(fraction);
    mIconCollapsingHelper.setExpansionFraction(fraction);
}

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