使用方法

将libray模块复制到项目中,或者直接在build.gradle中依赖:

allprojects {        repositories {                        maven { url 'https://jitpack.io' }        }    }

dependencies {            compile 'com.github.AnJiaoDe:SlidingMenuVertical:V1.1.2'    }

注意：如果sync报错，是因为和com.android.tools.build:gradle 3.0有关，

注意：布局一定是SlidingMenuVertical包含2个直接子View

public abstract class BaseActivity extends AppCompatActivity implements View.OnClickListener {    @Override    protected void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        StatusNavUtils.setStatusBarColor(this,0x00000000);    }    public void startAppcompatActivity(Class
     cls) {        startActivity(new Intent(this, cls));    }}

public class MainActivity extends BaseActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        final TextView tv_middle = (TextView) findViewById(R.id.tv_middle);        final SlidingMenuVertical slidingMenuVertical = ((SlidingMenuVertical) findViewById(R.id.slidingMenu));         slidingMenuVertical.setDuration_max(300);//设置 设置松手后 开闭最长过渡时间        slidingMenuVertical.setAmbit_scroll(100);//修改滑动界限 值，值越大  开闭越难  单位ms        slidingMenuVertical.setOnSwitchListener(new SlidingMenuVertical.OnSwitchListener() {            /*                   滑动中        y_now:实时view_bottom的top y, y_opened:抽屉打开时view_bootom的top y,y_closed:抽屉关闭时view_bottom的top y  top y:在屏幕中的top y坐标                    */            @Override            public void onSwitching(boolean isToOpen, int y_now, int y_opened, int y_closed) {                tv_middle.setBackgroundColor(Color.argb((int) (1.0f * (y_opened - y_now) / (y_opened - y_closed) * 255),                        Color.red(0xff3F51B5), Color.green(0xff3F51B5), Color.blue(0xff3F51B5)));                tv_middle.setTextColor(Color.argb((int) (1.0f * (y_opened - y_now) / (y_opened - y_closed) * 255),                        Color.red(0xffffffff), Color.green(0xffffffff), Color.blue(0xffffffff)));            }            @Override            public void onSwitched(boolean opened) {                if (opened) {                    tv_middle.setBackgroundColor(0xffffffff);                    tv_middle.setTextColor(0xff454545);                }            }        });        findViewById(R.id.tv_switch).setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                slidingMenuVertical.open(!slidingMenuVertical.isOpened());            }        });    }    @Override    public void onClick(View v) {    }}

源码

SlidingMenuVertical

public class SlidingMenuVertical extends LinearLayout {    private Scroller mScroller;    private View view_top;    private View view_bottom;    private float downX;    private float downY;    private boolean opened = true;//状态是否开闭    private OnSwitchListener onSwitchListener;    private int duration_max = 300;//最长过度时间    private int ambit_scroll = 100;//滑动界限，开闭    private int y_opened = -1;    // * y_opened:抽屉打开时view_bootom的top y    public SlidingMenuVertical(Context context) {        this(context, null);    }    public SlidingMenuVertical(Context context, AttributeSet attrs) {        super(context, attrs);        mScroller = new Scroller(context);        setOrientation(VERTICAL);    }    @Override    protected void onFinishInflate() {        // 当xml解析完成时的回调        view_top = getChildAt(0);        view_bottom = getChildAt(1);    }    @Override    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        super.onMeasure(widthMeasureSpec, heightMeasureSpec);        view_top.measure(widthMeasureSpec, ViewMeasureUtils.getChildHeightMeasureSpec(view_top, heightMeasureSpec));//        view_middle.measure(widthMeasureSpec,ViewMeasureUtils.getChildHeightMeasureSpec(view_middle,heightMeasureSpec));        view_bottom.measure(widthMeasureSpec, heightMeasureSpec);    }    @Override    public boolean onInterceptTouchEvent(MotionEvent event) {        setY_opened();        // 拦截        // 竖直滑动时，去拦截        switch (event.getAction()) {            case MotionEvent.ACTION_DOWN:                downX = event.getX();                downY = event.getY();                break;            case MotionEvent.ACTION_MOVE:                float moveX = event.getX();                float moveY = event.getY();                // 竖直滑动                if (Math.abs(moveY - downY) > Math.abs(moveX - downX)) {                    //上面隐藏                    if (opened == false) {                        return false;                    }                    //上面显示并且下滑                    if (opened == true && (moveY - downY) > 0) {                        return false;                    }                    return true;                }                break;            case MotionEvent.ACTION_UP:                break;            default:                break;        }        return super.onInterceptTouchEvent(event);    }    @Override    public boolean onTouchEvent(MotionEvent event) {        switch (event.getAction()) {            case MotionEvent.ACTION_DOWN:                downX = event.getX();                downY = event.getY();                break;            case MotionEvent.ACTION_MOVE:                float moveX = event.getX();                float moveY = event.getY();                int dy = (int) (downY - moveY + 0.5f);// 四舍五入 20.9 + 0.5-->20//                Log.e("dy","++++++++++++++++++++++++++++"+dy);                int scrollY = getScrollY();                //mDownY - moveY>0上滑                if (scrollY + dy > 0) {                    scrollBy(0, dy);                    if (scrollY + dy > getHeight_top()) {                        scrollTo(0, getHeight_top());                    }                }                downX = moveX;                downY = moveY;                break;            case MotionEvent.ACTION_UP://                Log.e("heigth_top", "+++++++++++++++++" + height_top);//                Log.e("scrollY", "+++++++++++++++++" + getScrollY());                if (opened) {                    open(!(getScrollY() > ambit_scroll || getScrollY() > getHeight_top() / 3));                } else {                    open(getScrollY() < getHeight_top() - ambit_scroll || getScrollY() < getHeight_top() * 2 / 3);                }                break;        }        // 消费掉        return true;    }    /**     * 开闭抽屉     *     * @param open     */    public void open(boolean open) {        setY_opened();        this.opened = open;        //打开        if (open) {//            Log.e("打开", "+++++++++++++++++++++++++++++");            int startX = getScrollX();// 起始的坐标X            int startY = getScrollY();// 起始的坐标Y            int endX = 0;            int endY = 0;            int dx = endX - startX;// 增量X            int dy = endY - startY;// 增量Y            // 1px = 10            int duration = Math.abs(dy) * 10;            if (duration > duration_max) {                duration = duration_max;            }            mScroller.startScroll(startX, startY, dx, dy, duration);        } else {            Log.e("关闭", "+++++++++++++++++++++++++++++" + getScrollY());            int startX = getScrollX();// 起始的坐标X            int startY = getScrollY();// 起始的坐标Y            int endX = 0;            int endY = getHeight_top();            int dx = endX - startX;// 增量X            int dy = endY - startY;// 增量Y            // 1px = 10            int duration = Math.abs(dy) * 10;            if (duration > duration_max) {                duration = duration_max;            }            // 模拟数据变化            mScroller.startScroll(startX, startY, dx, dy, duration);        }        invalidate();// 触发ui绘制 --> draw() --> dispatchDraw()--> drawChild -->    }    @Override    public void computeScroll() {        if (mScroller.computeScrollOffset()) {// 如果正在计算的过程中            // 更新滚动的位置            scrollTo(0, mScroller.getCurrY());            invalidate();        }    }    @Override    protected void onScrollChanged(int l, int t, int oldl, int oldt) {        super.onScrollChanged(l, t, oldl, oldt);//        Log.e("y_now", ScreenUtils.getViewScreenLocation(view_bottom)[1] + "++++++++++++++++++++++");////        Log.e("y_closed", y_opened - height_top + "++++++++++++++++++++++");        if (onSwitchListener != null) {            onSwitchListener.onSwitching(t - oldt < 0 ? true : false,                    getY_now(), getY_opened(), getY_opened() - getHeight_top());            if (getY_now() == getY_opened()) {//                Log.e("true", "++++++++++++++++++++++++");                onSwitchListener.onSwitched(true);            }            if (getY_now() == getY_opened() - getHeight_top()) {//                Log.e("false", "++++++++++++++++++++++++");                onSwitchListener.onSwitched(false);            }        }    }    public boolean isOpened() {        return opened;    }    public int getDuration_max() {        return duration_max;    }    /**     * 设置松手后 开闭最长过渡时间     *     * @param duration_max     */    public void setDuration_max(int duration_max) {        this.duration_max = duration_max;    }    public View getView_top() {        return view_top;    }    public View getView_bottom() {        return view_bottom;    }    public int getHeight_top() {        return view_top.getMeasuredHeight();    }    /**     * 获取 * y_opened:抽屉打开时view_bootom的top y     */    private void setY_opened(){        if (y_opened<0){            y_opened=getViewScreenLocation(view_bottom)[1];            Log.e("y _open",y_opened+"++++++++++++++++++++");        }    }    /**     * y_opened:抽屉打开时view_bootom的top y     *     * @return     */    public int getY_opened() {        if (y_opened<0){            Log.e("还未计算出来","+++++++++++++++++++++++++++++++++++");            return 0;        }        return y_opened;    }    /**     * y_now:抽屉实时view_bootom的top y     *     * @return     */    public int getY_now() {        return getViewScreenLocation(view_bottom)[1];    }    public int getAmbit_scroll() {        return ambit_scroll;    }    /**     * 修改滑动界限 值，值越大  开闭越难  单位ms     *     * @param ambit_scroll 

ViewMeasureUtils

public class ViewMeasureUtils {    /**     * 根据父 View 规则和子 View 的 LayoutParams，计算子类的宽度(width)测量规则     *     * @param view     */    public static int getChildWidthMeasureSpec(View view, int parentWidthMeasureSpec) {        // 获取父 View 的测量模式        int parentWidthMode = MeasureSpec.getMode(parentWidthMeasureSpec);        // 获取父 View 的测量尺寸        int parentWidthSize = MeasureSpec.getSize(parentWidthMeasureSpec);        // 定义子 View 的测量规则        int childWidthMeasureSpec = 0;        // 获取子 View 的 LayoutParams        ViewGroup.LayoutParams layoutParams = (ViewGroup.LayoutParams) view.getLayoutParams();        if (parentWidthMode == MeasureSpec.EXACTLY || parentWidthMode == MeasureSpec.AT_MOST) {        /* 这是当父类的模式是 dp 的情况 */            if (layoutParams.width > 0) {                childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(layoutParams.width, MeasureSpec.EXACTLY);            } else if (layoutParams.width == ViewGroup.LayoutParams.WRAP_CONTENT) {                childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(parentWidthSize, MeasureSpec.AT_MOST);            } else if (layoutParams.width == ViewGroup.LayoutParams.MATCH_PARENT) {                childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(parentWidthSize, MeasureSpec.EXACTLY);            }        } else if (parentWidthMode == MeasureSpec.UNSPECIFIED) {        /* 这是当父类的模式是 MATCH_PARENT 的情况 */            if (layoutParams.width > 0) {                childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(layoutParams.width, MeasureSpec.EXACTLY);            } else if (layoutParams.width == ViewGroup.LayoutParams.WRAP_CONTENT) {                childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);            } else if (layoutParams.width == ViewGroup.LayoutParams.MATCH_PARENT) {                childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);            }        }        // 返回子 View 的测量规则        return childWidthMeasureSpec;    }    /**     * 根据父 View 规则和子 View 的 LayoutParams，计算子类的宽度(width)测量规则     *     * @param view     */    public static int getChildHeightMeasureSpec(View view, int parentHeightMeasureSpec) {        // 获取父 View 的测量模式        int parentHeightMode = MeasureSpec.getMode(parentHeightMeasureSpec);        // 获取父 View 的测量尺寸        int parentHeightSize = MeasureSpec.getSize(parentHeightMeasureSpec);        // 定义子 View 的测量规则        int childHeightMeasureSpec = 0;        // 获取子 View 的 LayoutParams        ViewGroup.LayoutParams layoutParams = (ViewGroup.LayoutParams) view.getLayoutParams();        if (parentHeightMode == MeasureSpec.EXACTLY || parentHeightMode == MeasureSpec.AT_MOST) {        /* 这是当父类的模式是 dp 的情况 */            if (layoutParams.height > 0) {                childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(layoutParams.height, MeasureSpec.EXACTLY);            } else if (layoutParams.height == ViewGroup.LayoutParams.WRAP_CONTENT) {                childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(parentHeightSize, MeasureSpec.AT_MOST);            } else if (layoutParams.width == ViewGroup.LayoutParams.MATCH_PARENT) {                childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(parentHeightSize, MeasureSpec.EXACTLY);            }        } else if (parentHeightMode == MeasureSpec.UNSPECIFIED) {        /* 这是当父类的模式是 MATCH_PARENT 的情况 */            if (layoutParams.height > 0) {                childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(layoutParams.height, MeasureSpec.EXACTLY);            } else if (layoutParams.height == ViewGroup.LayoutParams.WRAP_CONTENT) {                childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);            } else if (layoutParams.height == ViewGroup.LayoutParams.MATCH_PARENT) {                childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);            }        }        // 返回子 View 的测量规则        return childHeightMeasureSpec;    }}

关注专题

微信公众号

QQ群