android开发PopupWindow和WindowManager的使用

由于本人工作上要写一个调节屏幕参数的界面用到了windowmanager，为避免每次都要去找代码还是自己总结下来好了，有需要的同学自己下载源码，修改一下界面即可。可以用来做类似360，腾讯管家悬浮窗口菜单效果。

这些基本视图的使用在android的APIdemos里面也有，只是没那么详细而已。
SDK APIdemos路径：E:\eclipse_adt_bundlece\sdk\samples\android-19\legacy\ApiDemos\src\com\example\android\apis\view
效果图：



关键代码类：

public class PopWindowTools {

    private static PopupWindow popupWindow;

    public static void showPopUp(View v, Context ctx) {
        LinearLayout layout = new LinearLayout(ctx);
        layout.setBackgroundColor(Color.GRAY);
        TextView tv = new TextView(ctx);
        tv.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
                LayoutParams.WRAP_CONTENT));
        tv.setText("I'm a pop -----------------------------!");
        tv.setTextColor(Color.WHITE);
        layout.addView(tv);

        popupWindow = new PopupWindow(layout, 120, 120);

        popupWindow.setFocusable(true);
        popupWindow.setOutsideTouchable(true);
        popupWindow.setBackgroundDrawable(new BitmapDrawable());

        int[] location = new int[2];
        v.getLocationOnScreen(location);
        // 上边
        popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, location[0],
        location[1] - popupWindow.getHeight());

        // 下方：
        // popupWindow.showAsDropDown(v);
        // popupWindow.showAsDropDown(v,200,0);
        // 左边
        // popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, location[0]
        // - popupWindow.getWidth(), location[1]);
        // 右边
        // popupWindow.showAtLocation(v, Gravity.NO_GRAVITY,
        // location[0] + v.getWidth(), location[1]);
    }


//   LayoutInflater mLayoutInflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
//   ViewGroup menuView = (ViewGroup) mLayoutInflater.inflate(R.layout.tips, null, true);
//   pw = new PopupWindow(menuView, LayoutParams.WRAP_CONTENT,
//   LayoutParams.WRAP_CONTENT, true);
//   // 设置点击返回键使其消失，且不影响背景，此时setOutsideTouchable函数即使设置为false
//   // 点击PopupWindow 外的屏幕，PopupWindow依然会消失；相反，如果不设置BackgroundDrawable
//   // 则点击返回键PopupWindow不会消失，同时，即时setOutsideTouchable设置为true
//   // 点击PopupWindow 外的屏幕，PopupWindow依然不会消失
//   pw.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
//   pw.setOutsideTouchable(false); // 设置是否允许在外点击使其消失，到底有用没？
//   pw.setAnimationStyle(R.style.PopupAnimation); // 设置动画
//  
//   // 计算x轴方向的偏移量，使得PopupWindow在Title的正下方显示，此处的单位是pixels
//   int xoffInPixels =
//   ScreenTools.getInstance(PopDemoActivity.this).getWidth() / 2 -
//   titleName.getWidth() / 2;
//   // 将pixels转为dip
//   int xoffInDip =
//   ScreenTools.getInstance(PopDemoActivity.this).px2dip(xoffInPixels);
//   pw.showAsDropDown(titleName, -xoffInDip, 0);
//   //pw.showAsDropDown(titleName);
//   pw.update();
//  
//   TextView tv = (TextView) menuView.findViewById(R.id.tips_ok);
//   tv.setOnClickListener(new View.OnClickListener() {
//  
//   public void onClick(View v) {
//   pw.dismiss();
//   }
//   });
}

/**
 * 
 */
public class FloatControl implements OnClickListener {
    private Context mContext;
    // 单例模式
    private static FloatControl mWindowUIService = null;
    // 镜像
    private WindowManager mWindowManager;
    private LayoutParams mWindowParams;
    // view
    private ViewGroup mFloatViewGroup;

    private FloatControl(Context mContext) {
        this.mContext = mContext;
    }

    public static FloatControl getInstance(Context ctx) {
        if (mWindowUIService == null)
            mWindowUIService = new FloatControl(ctx);
        return mWindowUIService;
    }

    private void initData() {
        SpUtil sSpUtil = SpUtil.getInstance(mContext);
        if (!sSpUtil.getBoolean("firstInit")) {// 没init过 就是 false

            sSpUtil.setBoolean("firstInit", true);
        }
    }

    public void initView(int positionX, int positionY, int layoutView) {
        initData();
        mFloatViewGroup = (ViewGroup) LayoutInflater.from(mContext).inflate(layoutView, null);
        // 创建内容悬浮视图
        initWindowView(positionX, positionY, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, true,
                mFloatViewGroup);
        InitSetVideoParametersView();
    }

    private void initWindowView(int positionX, int positionY, int width, int height, boolean touchable,
            ViewGroup viewGroup) {
        mWindowParams = new LayoutParams();
        mWindowParams.gravity = Gravity.TOP | Gravity.LEFT;
        // 调整悬浮窗显示的停靠位置为左侧置顶
        mWindowParams.x = positionX;
        mWindowParams.y = positionY;
        mWindowParams.width = width;
        mWindowParams.height = height;
        /*
         * 悬浮窗不可触摸，不接受任何事件,同时不影响后面的事件响应。 LayoutParams.FLAG_NOT_TOUCH_MODAL
         * 不影响后面的事件 LayoutParams.FLAG_NOT_FOCUSABLE 不可聚焦
         * LayoutParams.FLAG_NOT_TOUCHABLE 不可触摸
         */
        if (touchable) {
            mWindowParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE | LayoutParams.FLAG_NOT_TOUCH_MODAL;
        } else {
            // 不可处理click事件
            mWindowParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE | LayoutParams.FLAG_NOT_TOUCH_MODAL
                    | LayoutParams.FLAG_NOT_TOUCHABLE;
        }
        // mWindowParams.type = LayoutParams.TYPE_APPLICATION;
        mWindowParams.type = LayoutParams.TYPE_SYSTEM_ERROR;// error权限最大，悬浮于最上层窗口
        mWindowParams.format = PixelFormat.RGBA_8888;
        // mWindowParams.windowAnimations = R.anim.enter_zoom_in;

        mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
        mWindowManager.addView(viewGroup, mWindowParams);
    }

    public void updateWindowView(int positionX, int positionY, int width, ViewGroup viewGroup) {
        if (mWindowManager != null && mWindowParams != null) {
            mWindowParams.x = positionX;
            mWindowParams.y = positionY;
            mWindowParams.width = width;
            // mWindowParams.height = 0;
            mWindowManager.updateViewLayout(viewGroup, mWindowParams);
        }
    }

    public void recycleWindowSource() {
        if (mFloatViewGroup != null && mWindowManager != null) {
            mWindowManager.removeView(mFloatViewGroup);
            mFloatViewGroup = null;
            mWindowManager = null;
        }
    }

    private int[] YUV = { R.id.btn_set_y_add, R.id.btn_set_y_sub, R.id.btn_set_u_add, R.id.btn_set_u_sub,
            R.id.btn_set_v_add, R.id.btn_set_v_sub, R.id.btn_set_hue_add, R.id.btn_set_hue_sub,
            R.id.btn_set_Brightness_add, R.id.btn_set_Brightness_sub, R.id.btn_set_Saturation_add,
            R.id.btn_set_Saturation_sub, R.id.btn_set_Contrast_add, R.id.btn_set_Contrast_sub, R.id.btn_atc_reset,
            R.id.btn_atc_close };

    private TextView tvY;
    private TextView tvU;
    private TextView tvV;
    private TextView tvHue;
    private TextView tvBrightness;
    private TextView tvSaturation;
    private TextView tvContrast;

    private void InitSetVideoParametersView() {
        if (mFloatViewGroup == null) {
            return;
        }
        Button Bt = null;
        for (int i = 0; i < YUV.length; i++) {
            Bt = (Button) mFloatViewGroup.findViewById(YUV[i]);
            if (Bt != null) {
                Bt.setOnClickListener(this);
            }
        }

        tvY = (TextView) mFloatViewGroup.findViewById(R.id.TextView_y);
        tvU = (TextView) mFloatViewGroup.findViewById(R.id.TextView_u);
        tvV = (TextView) mFloatViewGroup.findViewById(R.id.TextView_v);
        tvHue = (TextView) mFloatViewGroup.findViewById(R.id.TextView_set_hue);
        tvBrightness = (TextView) mFloatViewGroup.findViewById(R.id.TextView_set_Brightness);
        tvSaturation = (TextView) mFloatViewGroup.findViewById(R.id.TextView_set_Saturation);
        tvContrast = (TextView) mFloatViewGroup.findViewById(R.id.TextView_set_Contrast);
    }

    @Override
    public void onClick(View v) {
        if (mFloatViewGroup == null) {
            return;
        }
        int id = v.getId();
        switch (id) {
        case R.id.btn_set_y_add: {
            break;
        }
        case R.id.btn_set_y_sub: {
            break;
        }
        case R.id.btn_set_u_add: {
            break;
        }
        case R.id.btn_set_u_sub: {
            break;
        }
        case R.id.btn_set_v_add: {
            break;
        }
        case R.id.btn_set_v_sub: {
            break;
        }
        case R.id.btn_set_hue_add: {
            break;
        }
        case R.id.btn_set_hue_sub: {
            break;
        }
        case R.id.btn_set_Brightness_add: {
            break;
        }
        case R.id.btn_set_Brightness_sub: {
            break;
        }
        case R.id.btn_set_Saturation_add: {
            break;
        }
        case R.id.btn_set_Saturation_sub: {
            break;
        }
        case R.id.btn_set_Contrast_add: {
            break;
        }
        case R.id.btn_set_Contrast_sub: {
            break;
        }
        case R.id.btn_atc_reset: {
            SpUtil sSpUtil = SpUtil.getInstance(mContext);

            break;
        }
        case R.id.btn_atc_close: {
            recycleWindowSource();
            mContext.stopService(new Intent(mContext, TouchListenerService.class));
            break;
        }
        }

    }

}

注意添加使用权限以及这两种使用区分，pop菜单是寄生于activity界面中的，受activity的生命周期影响，而windowmanager是悬浮于activity之上的。

源码点击下载