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Android 懸浮窗、懸浮球開發

focus show 權限 代碼 .com creates his activit exce

原文:Android 懸浮窗、懸浮球開發

1、權限管理

直接看我另外一篇博客吧,傳送門:

https://my.oschina.net/u/1462828/blog/1933162

2、Base類BaseSuspend


import android.content.Context;
import android.graphics.PixelFormat;
import android.os.Build;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;

import com.imxiaoyu.common.utils.entity.SizeEntity;

public abstract class BaseSuspend {
    private Context context;
    private View view;
    private boolean isShowing = false;
    /**
     * UI
     */
    private WindowManager.LayoutParams wmParams;//懸浮窗的布局

    /**
     * 變量
     */
    private WindowManager mWindowManager;//創建浮動窗口設置布局參數的對象

    /**
     * 接口
     */
    private OnSuspendDismissListener onSuspendDismissListener;

    public BaseSuspend(Context context) {
        this.context = context;
        view = LayoutInflater.from(context).inflate(getLayoutId(), null);
        init();
        initView();
        onCreateSuspension();
    }

    public void init() {
        if (mWindowManager == null) {
            mWindowManager = (WindowManager) context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
        }
        wmParams = getParams();//設置好懸浮窗的參數
        // 懸浮窗默認顯示以左上角為起始坐標
        wmParams.gravity = Gravity.LEFT | Gravity.TOP;
    }

    /**
     * 布局文件id,這裏是用不到的,但還是建議填寫,方便跳轉到布局管理
     *
     * @return
     */
    protected abstract int getLayoutId();

    /**
     * 註冊需要使用的控件
     */
    protected abstract void initView();

    protected abstract void onCreateSuspension();

    /**
     * 根據id快速找到控件
     *
     * @param id
     * @param <E>
     * @return
     */
    public final <E extends View> E findView(int id) {
        try {
            return (E) view.findViewById(id);
        } catch (ClassCastException ex) {
            throw ex;
        }
    }

    /**
     * 根據id快速找到控件
     *
     * @param id
     * @param onClickListener
     * @param <E>
     * @return
     */
    public final <E extends View> E findView(int id, View.OnClickListener onClickListener) {
        E e = findView(id);
        e.setOnClickListener(onClickListener);
        return e;
    }

    /**
     * 對windowManager進行設置
     *
     * @return
     */
    public WindowManager.LayoutParams getParams() {
        wmParams = new WindowManager.LayoutParams();
        //設置window type 下面變量2002是在屏幕區域顯示,2003則可以顯示在狀態欄之上
        //wmParams.type = LayoutParams.TYPE_PHONE;
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
            wmParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
        } else {
            wmParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
        }
//        wmParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
        //設置圖片格式,效果為背景透明
        wmParams.format = PixelFormat.RGBA_8888;
        //設置浮動窗口不可聚焦(實現操作除浮動窗口外的其他可見窗口的操作)
        //wmParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE;
        //設置可以顯示在狀態欄上
        wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
                WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR |
                WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
        return wmParams;
    }

    /**
     * 全屏顯示懸浮視圖
     */
    public void showSuspend() {
        showSuspend(0, 0, true);
    }

    /**
     * 顯示懸浮視圖
     *
     * @param sizeEntity
     * @param isMatchParent 是否全屏顯示
     */
    public void showSuspend(SizeEntity sizeEntity, boolean isMatchParent) {
        if (sizeEntity != null) {
            showSuspend(sizeEntity.getWidth(), sizeEntity.getHeight(), isMatchParent);
        }
    }

    /**
     * 顯示懸浮視圖
     *
     * @param width
     * @param height
     */
    public void showSuspend(int width, int height, boolean isMatchParent) {
        //設置懸浮窗口長寬數據
        if (isMatchParent) {
            wmParams.width = WindowManager.LayoutParams.MATCH_PARENT;
            wmParams.height = WindowManager.LayoutParams.MATCH_PARENT;
        } else {
            wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
            wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
        }
        //懸浮窗的開始位置,讀取緩存
        wmParams.x = width;
        wmParams.y = height;

        if (isShowing) {
            removeView();
        }
        mWindowManager.addView(view, wmParams);
        isShowing = true;
    }

    /**
     * 更新當前視圖的位置
     *
     * @param x 更新後的X軸的增量
     * @param y 更新後的Y軸的增量
     */
    public void updateSuspend(int x, int y) {
        if (view != null) {
            //必須是當前顯示的視圖才給更新
            WindowManager.LayoutParams layoutParams = (WindowManager.LayoutParams) view.getLayoutParams();
            layoutParams.x += x;
            layoutParams.y += y;
            mWindowManager.updateViewLayout(view, layoutParams);
        }
    }

    /**
     * 移除當前懸浮窗
     */
    public void dismissSuspend() {
        if (view != null) {
            mWindowManager.removeView(view);
            isShowing = false;
            if (onSuspendDismissListener != null) {
                onSuspendDismissListener.onDismiss();
            }
        }
    }

    public Context getContext() {
        return context;
    }

    public View getView() {
        return view;
    }

    /**
     * 是否正在顯示
     *
     * @return
     */
    public boolean isShowing() {
        return isShowing;
    }

    /**
     * 移除彈窗的時候回調
     *
     * @param onSuspendDismissListener
     */
    public void setOnSuspendDismissListener(OnSuspendDismissListener onSuspendDismissListener) {
        this.onSuspendDismissListener = onSuspendDismissListener;
    }

    public interface OnSuspendDismissListener {
        public void onDismiss();
    }
}

還有裏面用到的一個size類:


/**
 * 寬高實體
 * Created by 她叫我小渝 on 2016/11/4.
 */

public class SizeEntity {
    private int width;
    private int height;

    public SizeEntity(){}
    public SizeEntity(int width,int height){
        setWidth(width);
        setHeight(height);
    }


    public int getWidth() {
        return width;
    }

    public void setWidth(int width) {
        this.width = width;
    }

    public int getHeight() {
        return height;
    }

    public void setHeight(int height) {
        this.height = height;
    }
}

3、定制視圖和使用

要實現的邏輯是,顯示一個懸浮球,然後可以拖動移動懸浮球的位置,效果圖:

技術分享圖片? ? ? ? ??技術分享圖片

然後新建一個類,LogoSuspend繼承BaseSuspend,裏面引用到了一些工具類就不貼出來了,用到的地方我會加上註釋


/**
 * 懸浮球
 * Created by 她叫我小渝 on 2017/1/1.
 */

public class LogoSuspend extends BaseSuspend {

    /**
     * ui
     */
    private ImageView ivLogo;
    /**
     * 變量
     */
    private int width, height;
    private float mStartX, mStartY, mStopX, mStopY, touchStartX, touchStartY;
    private long touchStartTime;
    /**
     * 接口
     */
    private View.OnClickListener onClickListener;

    public LogoSuspend(Context context) {
        super(context);
    }


    @Override
    protected int getLayoutId() {
        return R.layout.suspend_logo;
    }

    @Override
    protected void initView() {
        ivLogo = findView(R.id.iv_logo);
        ivLogo.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent event) {
                final int action = event.getAction();
                mStopX = event.getRawX();
                mStopY = event.getRawY();
                switch (action) {
                    case MotionEvent.ACTION_DOWN:
                        // 以當前父視圖左上角為原點
                        mStartX = event.getRawX();
                        mStartY = event.getRawY();
                        touchStartX = event.getRawX();
                        touchStartY = event.getRawY();
                        touchStartTime = DateUtil.getTimeForLong();//獲取當前時間戳
                        break;
                    case MotionEvent.ACTION_MOVE:
                        width = (int) (mStopX - mStartX);
                        height = (int) (mStopY - mStartY);
                        mStartX = mStopX;
                        mStartY = mStopY;
                        updateSuspend(width, height);
                        break;
                    case MotionEvent.ACTION_UP:
                        width = (int) (mStopX - mStartX);
                        height = (int) (mStopY - mStartY);
                        updateSuspend(width, height);
                        WindowManager.LayoutParams layoutParams = (WindowManager.LayoutParams) getView().getLayoutParams();
                        SuspensionCache.setSuspendSize(getContext(), new SizeEntity(layoutParams.x + width, layoutParams.y + height));//緩存一下當前位置
                        if ((mStopX - touchStartX) < 30 && (mStartY - touchStartY) < 30 && (DateUtil.getTimeForLong() - touchStartTime) < 300) {
                            //左右上下移動距離不超過30的,並且按下和擡起時間少於300毫秒,算是單擊事件,進行回調
                            if (onClickListener != null) {
                                onClickListener.onClick(view);
                            }
                        }
                        break;
                }
                return true;
            }
        });
    }

    @Override
    protected void onCreateSuspension() {

    }

    /**
     * 設置點擊監聽
     *
     * @param onClickListener
     */
    public void setOnClickListener(View.OnClickListener onClickListener) {
        this.onClickListener = onClickListener;
    }
}

布局文件syspend_logo.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rly_bg"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <ImageView
        android:id="@+id/iv_logo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_home_add_normal" />
</RelativeLayout>

因為Activity是有生命周期的,所以打開懸浮窗的Context上下文,不要用Activity的,而是用Service的

創建並註冊一個Service,然後在onCreate方法中執行調用代碼就好

@Override
    public void onCreate() {
        super.onCreate();
        ALog.e("服務已創建");

        if (logoSuspend == null) {
            logoSuspend = new LogoSuspend(this);
        }
        logoSuspend.showSuspend(SuspensionCache.getSuspendSize(this), false);//從緩存中提取上一次顯示的位置
        logoSuspend.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //處理單擊事件
            }
        });
    }

4、廢話

????上面的例子,其實還是比較簡單的,但一般開發對於懸浮球的需求並不算很大,Base類的話,目前只是最基礎的東西,在開發的過程中,需要用到什麽了再往裏面加就好,問題不大。

????目前代碼支持同時顯示多個懸浮窗、懸浮球,主要用於在於懸浮窗交互的時候,直接彈出其他的交互界面(也是以懸浮窗的狀態出現),但建議每一個頁面都有關閉按鈕或者做返回鍵關閉的相關操作,畢竟是顯示在最前端的,要是關不掉就點哪裏都沒用,只能是強制關機了…………()&@()……()@#*¥)()@*#…………@#)()*¥)()…………

????

Android 懸浮窗、懸浮球開發