IP拨号监听去电

今天做了一个小demo。主要是想回顾一下BroadcastReceiver的手动注册的方法，同时也温习一下service
布局文件main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.ipdial.MainActivity" >

    <Switch
        android:id="@+id/switch1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="服务开关"
        android:textOff="服务已关闭"
        android:textOn="服务已开启" />

</RelativeLayout>

MainActivity.java

package com.example.ipdial;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.CompoundButton;
import android.widget.Toast;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.Switch;

public class MainActivity extends Activity {
    private Switch switch1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        switch1 = (Switch) findViewById(R.id.switch1);
        switch1.setOnCheckedChangeListener(new OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView,
                    boolean isChecked) {
                if (isChecked) {
                    startService(new Intent(MainActivity.this, MyService.class));
                    Toast.makeText(MainActivity.this, "startService",
                            Toast.LENGTH_SHORT).show();
                } else {
                    stopService(new Intent(MainActivity.this, MyService.class));
                    Toast.makeText(MainActivity.this, "stopService",
                            Toast.LENGTH_SHORT).show();
                }
            }
        });
    }
}

对应的service代码：

package com.example.ipdial;

import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.widget.Toast;

public class MyService extends Service {
    private MyReceiver myReceiver;

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

    @Override
    public void onCreate() {
        myReceiver = new MyReceiver();
        IntentFilter filter = new IntentFilter();
        filter.addAction(Intent.ACTION_NEW_OUTGOING_CALL);
        registerReceiver(myReceiver, filter);
    }

    @Override
    public void onDestroy() {
        unregisterReceiver(myReceiver);
    }

    public static class MyReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            Toast.makeText(context, "MyReceiver", Toast.LENGTH_SHORT).show();
            //监听去电
            if(intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)){
                String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
                if(number.equals("12345")){
                    setResultData("12345" + number);
                }
            }
        }
    }
}

BroadcastReceiver 是手动注册的，所以清单文件不用再注册，但是service需要注册、

<service android:name="MyService"></service>

当然还需要权限：

<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"/>

PS：avd在打电话的时候会断开连接，DDMS下会是一片空白

键入如下代码即可：