android四大組件之BroadcastReceiver ip撥號功能

標籤：

BroadcastReceiver是廣播接收者，系統會在產生事件的時候發送一些廣播，比如開機，打電話，等等……

而BroadcastReceiver就可以接收到這些廣播從而進行操作。

今天我們要做的就是在撥打號碼的時候加上前面的ip號。

首先我們要註冊一個BroadcastReceiver，然後我們要在資訊清單檔裡配置一些資訊首先我們要明確這個BroadcastReceiver 要接收什麼樣的

廣播。

        <receiver android:name="com.example.ipcall.MyReceiver" >
            <intent-filter>
                <action android:name="android.intent.action.NEW_OUTGOING_CALL"/>
                
            </intent-filter>
        </receiver>

這個就可以確定接收的是打電話時候發送的廣播，然後在許可權裡還要加上

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

package com.example.ipcall;import android.os.Bundle;import android.app.Activity;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.EditText;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        findViewById(R.id.btn).setOnClickListener(new OnClickListener() {                        @Override            public void onClick(View arg0) {                // TODO Auto-generated method stub                EditText edt = (EditText) findViewById(R.id.ip);                String ipnumber = edt.getText().toString();                SharedPreferences sp = getSharedPreferences("number",MODE_PRIVATE);                Editor editor = sp.edit();                editor.putString("ip",ipnumber).commit();            }        });    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }}

package com.example.ipcall;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;public class MyReceiver extends BroadcastReceiver {    public MyReceiver() {    }    @Override    public void onReceive(Context context, Intent intent) {        // TODO: This method is called when the BroadcastReceiver is receiving        // an Intent broadcast.        System.out.println("打電話了");        //得到打電話的號碼        String number = getResultData();        SharedPreferences sp = context.getSharedPreferences("number",context.MODE_PRIVATE);        String ip = sp.getString("ip","");        //設定打電話的好啊        setResultData(ip+number);            }}

<LinearLayout 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"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity"     android:orientation="vertical">    <EditText        android:id="@+id/ip"        android:layout_width="match_parent"        android:layout_height="wrap_content"         android:hint="請輸入"/>    <Button        android:id="@+id/btn"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" /></LinearLayout>

 

android四大組件之BroadcastReceiver ip撥號功能