我试图创建一个总是在顶部按钮/点击图像 它一直在所有的窗口上面。

证明 概念是

智能任务栏(在AppBrain上) 这里是V1.4.0侧边栏样式的SWKey -按钮救星(在xda-developers上)

我已经成功了,现在有一个运行的服务。服务 在屏幕左上角一直显示一些文本 用户可以自由地与其他应用程序进行正常的交互。

我 ViewGroup的子类,并将它添加到根窗口管理器 国旗TYPE_SYSTEM_OVERLAY。现在我想添加一个按钮/可点击的图像 在这个文本的地方,它可以接收自己的触摸事件。我 试着重写整个ViewGroup的“onTouchEvent”,但它做到了 没有收到任何事件。

如何只能在某些部分接收事件 我总是在顶部的视图组?请建议。

public class HUD extends Service {
    HUDView mView;

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Toast.makeText(getBaseContext(),"onCreate", Toast.LENGTH_LONG).show();
        mView = new HUDView(this);
        WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.WRAP_CONTENT,
                WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
                0,
//              WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
//                      | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
                PixelFormat.TRANSLUCENT);
        params.gravity = Gravity.RIGHT | Gravity.TOP;
        params.setTitle("Load Average");
        WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
        wm.addView(mView, params);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Toast.makeText(getBaseContext(),"onDestroy", Toast.LENGTH_LONG).show();
        if(mView != null)
        {
            ((WindowManager) getSystemService(WINDOW_SERVICE)).removeView(mView);
            mView = null;
        }
    }
}

class HUDView extends ViewGroup {
    private Paint mLoadPaint;

    public HUDView(Context context) {
        super(context);
        Toast.makeText(getContext(),"HUDView", Toast.LENGTH_LONG).show();

        mLoadPaint = new Paint();
        mLoadPaint.setAntiAlias(true);
        mLoadPaint.setTextSize(10);
        mLoadPaint.setARGB(255, 255, 0, 0);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        canvas.drawText("Hello World", 5, 15, mLoadPaint);
    }

    @Override
    protected void onLayout(boolean arg0, int arg1, int arg2, int arg3, int arg4) {
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        //return super.onTouchEvent(event);
        Toast.makeText(getContext(),"onTouchEvent", Toast.LENGTH_LONG).show();
        return true;
    }
}

当前回答

工作总是在顶部图像按钮

首先,我的英语不好

我编辑你的代码,并使工作图像按钮,听他的触摸事件 不要给他的背景元素触摸控制。

此外,它还提供了触摸监听器,以排除其他元素

按钮排列在底部和左侧

你可以改变对齐,但你需要在if元素的触摸事件中改变坐标

import android.annotation.SuppressLint;

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.Toast;

public class HepUstte extends Service {
    HUDView mView;

    @Override
    public void onCreate() {
        super.onCreate();   

        Toast.makeText(getBaseContext(),"onCreate", Toast.LENGTH_LONG).show();

        final Bitmap kangoo = BitmapFactory.decodeResource(getResources(),
                R.drawable.logo_l);


        WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                kangoo.getWidth(), 
                kangoo.getHeight(),
                WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                |WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
                |WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                 PixelFormat.TRANSLUCENT);






        params.gravity = Gravity.LEFT | Gravity.BOTTOM;
        params.setTitle("Load Average");
        WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);



        mView = new HUDView(this,kangoo);

        mView.setOnTouchListener(new OnTouchListener() {


            @Override
            public boolean onTouch(View arg0, MotionEvent arg1) {
                // TODO Auto-generated method stub
                //Log.e("kordinatlar", arg1.getX()+":"+arg1.getY()+":"+display.getHeight()+":"+kangoo.getHeight());
                if(arg1.getX()<kangoo.getWidth() & arg1.getY()>0)
                {
                 Log.d("tıklandı", "touch me");
                }
                return false;
            }
             });


        wm.addView(mView, params);



        }



    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        return null;
    }

}



@SuppressLint("DrawAllocation")
class HUDView extends ViewGroup {


    Bitmap kangoo;

    public HUDView(Context context,Bitmap kangoo) {
        super(context);

        this.kangoo=kangoo;



    }


    protected void onDraw(Canvas canvas) {
        //super.onDraw(canvas);


        // delete below line if you want transparent back color, but to understand the sizes use back color
        canvas.drawColor(Color.BLACK);

        canvas.drawBitmap(kangoo,0 , 0, null); 


        //canvas.drawText("Hello World", 5, 15, mLoadPaint);

    }


    protected void onLayout(boolean arg0, int arg1, int arg2, int arg3, int arg4) {
    }

    public boolean onTouchEvent(MotionEvent event) {
        //return super.onTouchEvent(event);
       // Toast.makeText(getContext(),"onTouchEvent", Toast.LENGTH_LONG).show();

        return true;
    }
}

其他回答

这里有一些简单的解决方案, 您所需要做的就是像在列表适配器上做的那样膨胀XML布局, 只是做XML布局来膨胀它。 以下是您所需要的所有代码。

 public class HUD extends Service {
    View mView;

    LayoutInflater inflate;
    TextView t;
    Button b;

    @Override
    public void onCreate() {
        super.onCreate();   

        Toast.makeText(getBaseContext(),"onCreate", Toast.LENGTH_LONG).show();


        WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);

        Display display = wm.getDefaultDisplay();  get phone display size
        int width = display.getWidth();  // deprecated - get phone display width
        int height = display.getHeight(); // deprecated - get phone display height 


        WindowManager.LayoutParams params = new WindowManager.LayoutParams(
                width, 
                height,
                WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                |WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
                |WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
                 PixelFormat.TRANSLUCENT);


        params.gravity = Gravity.LEFT | Gravity.CENTER;
        params.setTitle("Load Average");

        inflate = (LayoutInflater) getBaseContext()
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        mView = inflate.inflate(R.layout.canvas, null);

        b =  (Button) mView.findViewById(R.id.button1);
        t = (TextView) mView.findViewById(R.id.textView1);
        b.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            // TODO Auto-generated method stub
            t.setText("yes you click me ");
        }
       });

        wm.addView(mView, params);

        }



    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        return null;
    }

}

TYPE_SYSTEM_OVERLAY已弃用,并将给出权限拒绝错误。 使用WindowManager.LayoutParams。TYPE_APPLICATION_OVERLAY代替。

WindowManager.LayoutParams。FLAG_NOT_TOUCH_MODAL可能就是你要找的。

窗口标志:即使这个窗口是可聚焦的(它的FLAG_NOT_FOCUSABLE没有设置),也允许窗口外的任何指针事件被发送到它后面的窗口。否则,它将消耗所有指针事件本身,不管它们是否在窗口内。

Docs

实现视图。OnClickListener或View。onTouchListener监听触摸事件。

@Sarwar Erfan的答案不再有效,因为Android不允许使用WindowManager.LayoutParams添加视图。窗口的TYPE_SYSTEM_OVERLAY不再是可触摸的,甚至不是windowmanager . layoutparam . flag_watch_outside_touch。

我找到了解决这个问题的办法。你可以看看下面的问题

当使用WindowManager.LayoutParams添加视图到窗口时。TYPE_SYSTEM_OVERLAY,它不是get touch事件

它使用权限“android.permission”。SYSTEM_ALERT_WINDOW"关于此链接的完整教程:http://androidsrc.net/facebook-chat-like-floating-chat-heads/

试试我的代码,至少它给了你一个字符串作为覆盖,你可以很好地用一个按钮或图像替换它。你不会相信这是我的第一个安卓应用,哈哈。无论如何,如果你比我更有经验的android应用程序,请尝试

在“new WindowManager”中更改参数2和3。LayoutParams” 尝试一些不同的事件方法