仿QQ侧滑菜单<大自然的搬运工-代码不是我的>

1.记录下效果图

2.二个工具类

package myapplication.com.myapplicationfortest.utils;

import android.util.Log;

/**
 * Log统一管理类
 *
 * @author way
 *
 */
public class L
{

    private L()
    {
        /* cannot be instantiated */
        throw new UnsupportedOperationException("cannot be instantiated");
    }

    public static boolean isDebug = true;// 是否需要打印bug，可以在application的onCreate函数里面初始化
    private static final String TAG = "way";

    // 下面四个是默认tag的函数
    public static void i(String msg)
    {
        if (isDebug)
            Log.i(TAG, msg);
    }

    public static void d(String msg)
    {
        if (isDebug)
            Log.d(TAG, msg);
    }

    public static void e(String msg)
    {
        if (isDebug)
            Log.e(TAG, msg);
    }

    public static void v(String msg)
    {
        if (isDebug)
            Log.v(TAG, msg);
    }

    // 下面是传入自定义tag的函数
    public static void i(String tag, String msg)
    {
        if (isDebug)
            Log.i(tag, msg);
    }

    public static void d(String tag, String msg)
    {
        if (isDebug)
            Log.i(tag, msg);
    }

    public static void e(String tag, String msg)
    {
        if (isDebug)
            Log.i(tag, msg);
    }

    public static void v(String tag, String msg)
    {
        if (isDebug)
            Log.i(tag, msg);
    }
}

package myapplication.com.myapplicationfortest.utils;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Rect;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.WindowManager;

/**
 * 获得屏幕相关的辅助类
 *
 * @author zhy
 *
 */
public class ScreenUtils
{
    private ScreenUtils()
    {
        /* cannot be instantiated */
        throw new UnsupportedOperationException("cannot be instantiated");
    }

    /**
     * 获得屏幕高度
     *
     * @param context
     * @return
     */
    public static int getScreenWidth(Context context)
    {
        WindowManager wm = (WindowManager) context
                .getSystemService(Context.WINDOW_SERVICE);
        DisplayMetrics outMetrics = new DisplayMetrics();
        wm.getDefaultDisplay().getMetrics(outMetrics);
        return outMetrics.widthPixels;
    }

    /**
     * 获得屏幕宽度
     *
     * @param context
     * @return
     */
    public static int getScreenHeight(Context context)
    {
        WindowManager wm = (WindowManager) context
                .getSystemService(Context.WINDOW_SERVICE);
        DisplayMetrics outMetrics = new DisplayMetrics();
        wm.getDefaultDisplay().getMetrics(outMetrics);
        return outMetrics.heightPixels;
    }

    /**
     * 获得状态栏的高度
     *
     * @param context
     * @return
     */
    public static int getStatusHeight(Context context)
    {

        int statusHeight = -1;
        try
        {
            Class<?> clazz = Class.forName("com.android.internal.R$dimen");
            Object object = clazz.newInstance();
            int height = Integer.parseInt(clazz.getField("status_bar_height")
                    .get(object).toString());
            statusHeight = context.getResources().getDimensionPixelSize(height);
        } catch (Exception e)
        {
            e.printStackTrace();
        }
        return statusHeight;
    }

    /**
     * 获取当前屏幕截图，包含状态栏
     *
     * @param activity
     * @return
     */
    public static Bitmap snapShotWithStatusBar(Activity activity)
    {
        View view = activity.getWindow().getDecorView();
        view.setDrawingCacheEnabled(true);
        view.buildDrawingCache();
        Bitmap bmp = view.getDrawingCache();
        int width = getScreenWidth(activity);
        int height = getScreenHeight(activity);
        Bitmap bp = null;
        bp = Bitmap.createBitmap(bmp, 0, 0, width, height);
        view.destroyDrawingCache();
        return bp;

    }

    /**
     * 获取当前屏幕截图，不包含状态栏
     *
     * @param activity
     * @return
     */
    public static Bitmap snapShotWithoutStatusBar(Activity activity)
    {
        View view = activity.getWindow().getDecorView();
        view.setDrawingCacheEnabled(true);
        view.buildDrawingCache();
        Bitmap bmp = view.getDrawingCache();
        Rect frame = new Rect();
        activity.getWindow().getDecorView().getWindowVisibleDisplayFrame(frame);
        int statusBarHeight = frame.top;

        int width = getScreenWidth(activity);
        int height = getScreenHeight(activity);
        Bitmap bp = null;
        bp = Bitmap.createBitmap(bmp, 0, statusBarHeight, width, height
                - statusBarHeight);
        view.destroyDrawingCache();
        return bp;

    }

}

3.自定义HorizontalScrollView

package myapplication.com.myapplicationfortest;

import android.content.Context;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.ViewGroup;
import android.widget.HorizontalScrollView;
import android.widget.LinearLayout;

import myapplication.com.myapplication.R;
import myapplication.com.myapplicationfortest.utils.ScreenUtils;

public class SlidingMenu extends HorizontalScrollView
{
    /**
     * 屏幕宽度
     */
    private int mScreenWidth;
    /**
     * dp
     */
    private int mMenuRightPadding;
    /**
     * 菜单的宽度
     */
    private int mMenuWidth;
    private int mHalfMenuWidth;

    private boolean isOpen;

    private boolean once;

    public SlidingMenu(Context context, AttributeSet attrs)
    {
        this(context, attrs, 0);

    }

    public SlidingMenu(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
        mScreenWidth = ScreenUtils.getScreenWidth(context);

        TypedArray a = context.getTheme().obtainStyledAttributes(attrs,
                R.styleable.SlidingMenu, defStyle, 0);
        int n = a.getIndexCount();
        for (int i = 0; i < n; i++)
        {
            int attr = a.getIndex(i);
            switch (attr)
            {
            case R.styleable.SlidingMenu_rightPadding:
                // 默认50
                mMenuRightPadding = a.getDimensionPixelSize(attr,
                        (int) TypedValue.applyDimension(
                                TypedValue.COMPLEX_UNIT_DIP, 50f,
                                getResources().getDisplayMetrics()));// 默认为10DP
                break;
            }
        }
        a.recycle();
    }

    public SlidingMenu(Context context)
    {
        this(context, null, 0);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
    {
        /**
         * 显示的设置一个宽度
         */
        if (!once)
        {
            LinearLayout wrapper = (LinearLayout) getChildAt(0);
            ViewGroup menu = (ViewGroup) wrapper.getChildAt(0);
            ViewGroup content = (ViewGroup) wrapper.getChildAt(1);

            mMenuWidth = mScreenWidth - 150;
            mHalfMenuWidth = mMenuWidth / 2;
            menu.getLayoutParams().width = mMenuWidth;
            content.getLayoutParams().width = mScreenWidth;

        }
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    }

    @Override
    protected void onLayout(boolean changed, int l, int t, int r, int b)
    {
        super.onLayout(changed, l, t, r, b);
        if (changed)
        {
            // 将菜单隐藏
            this.scrollTo(mMenuWidth, 0);
            once = true;
        }
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev)
    {
        int action = ev.getAction();
        switch (action)
        {
        // Up时，进行判断，如果显示区域大于菜单宽度一半则完全显示，否则隐藏
        case MotionEvent.ACTION_UP:
            int scrollX = getScrollX();
            if (scrollX > mHalfMenuWidth)
            {
                this.smoothScrollTo(mMenuWidth, 0);
                isOpen = false;
            } else
            {
                this.smoothScrollTo(0, 0);
                isOpen = true;
            }
            return true;
        }
        return super.onTouchEvent(ev);
    }

    /**
     * 打开菜单
     */
    public void openMenu()
    {
        if (isOpen)
            return;
        this.smoothScrollTo(0, 0);
        isOpen = true;
    }

    /**
     * 关闭菜单
     */
    public void closeMenu()
    {
        if (isOpen)
        {
            this.smoothScrollTo(mMenuWidth, 0);
            isOpen = false;
        }
    }

    /**
     * 切换菜单状态
     */
    public void toggle()
    {
        if (isOpen)
        {
            closeMenu();
        } else
        {
            openMenu();
        }
    }

}

4.MainActivity

package myapplication.com.myapplicationfortest;

import android.app.Activity;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.Window;

import myapplication.com.myapplication.R;

public class MainActivity extends Activity {

 SlidingMenu mMenu;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_main);
        mMenu = (SlidingMenu) findViewById(R.id.id_menu);

    }

    public void toggleMenu(View view)
    {
        mMenu.toggle();
    }
}

5.main 布局 activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<myapplication.com.myapplicationfortest.SlidingMenu
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/id_menu"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:background="@drawable/bg"
    >

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:orientation="horizontal" >

        <include layout="@layout/layout_menu" />
        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:background="@drawable/bg"
           >
            <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:onClick="toggleMenu"
                android:text="切换菜单" />
        </LinearLayout>
    </LinearLayout>

</myapplication.com.myapplicationfortest.SlidingMenu>

侧滑布局 layout_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    android:background="@drawable/qq" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:orientation="vertical" >

    </LinearLayout>

</RelativeLayout>

6.styles.xml

<resources>
    <style name="AppBaseTheme" parent="android:Theme.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    </style>

</resources>