【android】来电悬浮窗

先看下效果图

说下思路：

1：监听来电广播

2：根据来电号码，和本地数据库做匹配，有记录的，则提取出头像、名字、职位，生成悬浮窗

3：监听来电广播，如果当前行为是空闲的（没有任何通话行为），则删除掉悬浮窗。

说了思路之后，就贴上代码了，逻辑很简单，就不多赘述了。

1：监听来电类

记得在AndroidManifest.xml加上权限声明

 <receiver android:name=".call.IncomingCallBroadCastReceiver">

            <intent-filter android:priority="1000">

                <action android:name="android.intent.action.PHONE_STATE" />

            </intent-filter>

        </receiver>

package zhexian.app.smartcall.call;

import android.app.Service;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.telephony.TelephonyManager;

import android.view.View;

import android.view.WindowManager;

import zhexian.app.smartcall.base.BaseApplication;

public class IncomingCallBroadCastReceiver extends BroadcastReceiver {

    private static View addedView = null;

    @Override

    public void onReceive(Context context, Intent intent) {

        TelephonyManager tManager = (TelephonyManager) context.getSystemService(Service.TELEPHONY_SERVICE);

        int callState = tManager.getCallState();

        switch (callState) {

            case TelephonyManager.CALL_STATE_RINGING:

                removeView(context);

                CallFlatWindowManager windowManager = new CallFlatWindowManager((BaseApplication) context.getApplicationContext());

                String incomingNumber = intent.getStringExtra("incoming_number");

                addedView = windowManager.OnCall(incomingNumber);

                break;

            case TelephonyManager.CALL_STATE_IDLE:

                removeView(context);

                break;

        }

    }

    void removeView(Context context) {

        if (addedView == null)

            return;

        try {

            WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);

            windowManager.removeViewImmediate(addedView);

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            addedView = null;

        }

    }

}

悬浮窗实现代码也一并贴出，仅供各位参考

通过WindowManager，生成一个不可触摸的窗体

package zhexian.app.smartcall.call;

import android.content.Context;

import android.graphics.PixelFormat;

import android.view.Gravity;

import android.view.LayoutInflater;

import android.view.View;

import android.view.WindowManager;

import android.widget.ImageView;

import android.widget.TextView;

import zhexian.app.smartcall.R;

import zhexian.app.smartcall.base.BaseApplication;

import zhexian.app.smartcall.lib.ZContact;

import zhexian.app.smartcall.lib.ZIO;

import zhexian.app.smartcall.lib.ZString;

import zhexian.app.smartcall.tools.Utils;

/**

 * 来电悬浮窗管理类

 */

public class CallFlatWindowManager {

    private int IMAGE_SIZE = 128;

    private WindowManager mWindowManager;

    private WindowManager.LayoutParams layoutParams;

    private View view;

    private TextView mUserName;

    private TextView mJob;

    private BaseApplication baseApp;

    private ImageView imageView;

    public CallFlatWindowManager(BaseApplication baseApp) {

        this.baseApp = baseApp;

        initWindow();

        ContactSQLHelper.Init(baseApp);

    }

    public View OnCall(String incomingNumber) {

        if (ZContact.isPhoneExists(baseApp, incomingNumber))

            return null;

        CallUserEntity entity = ContactSQLHelper.getInstance().getContact(incomingNumber);

        if (entity == null)

            return null;

        return attachWindow(entity.getName(), entity.getJob(), entity.getAvatarUrl());

    }

    private View attachWindow(String userName, String job, String url) {

        mUserName.setText(userName);

        mJob.setText(job);

        loadImage(url);

        mWindowManager.addView(view, layoutParams);

        return view;

    }

    private void initWindow() {

        mWindowManager = (WindowManager) baseApp.getSystemService(Context.WINDOW_SERVICE);

        layoutParams = new WindowManager.LayoutParams();

        layoutParams.width = WindowManager.LayoutParams.WRAP_CONTENT;

        layoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT;

        layoutParams.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;

        layoutParams.format = PixelFormat.RGBA_8888;

        layoutParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;

        layoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;

        LayoutInflater inflater = (LayoutInflater) baseApp.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        view = inflater.inflate(R.layout.call_flat_window, null);

        mUserName = (TextView) view.findViewById(R.id.flat_user_name);

        imageView = (ImageView) view.findViewById(R.id.flat_user_avatar);

        mJob = (TextView) view.findViewById(R.id.flat_user_job);

    }

    private void loadImage(String url) {

        if (url.isEmpty()) {

            imageView.setVisibility(View.GONE);

            return;

        }

        String cachedUrl = ZString.getFileCachedDir(url, baseApp.getFilePath());

        if (ZIO.isExist(cachedUrl))

            imageView.setImageBitmap(Utils.getScaledBitMap(cachedUrl, IMAGE_SIZE, IMAGE_SIZE));

        else

            imageView.setVisibility(View.GONE);

    }

}