android監控來電顯示

當電話來電的時候，我們要監控著電話號碼的來電，哪我們是通過代碼控制，下面我們看看利用吐絲顯示來電顯示
 

 
package com.smart;
 
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.widget.Toast;
 
public class Main extends Activity {
 
    public class MyPhoneCallListener extends PhoneStateListener{
 
        @Override
        public void onCallStateChanged(int state, String incomingNumber) {
 
            switch (state) {
            case TelephonyManager.CALL_STATE_OFFHOOK:
                Toast.makeText(Main.this, "正在通話中....", Toast.LENGTH_SHORT).show();
                break;
                
                
            case TelephonyManager.CALL_STATE_RINGING:
                Toast.makeText(Main.this, incomingNumber, Toast.LENGTH_SHORT).show();
                break;
            }
            
            
            
            
            super.onCallStateChanged(state, incomingNumber);
        }
        
    }
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TelephonyManager tm=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
        MyPhoneCallListener myPhoneCallListener=new MyPhoneCallListener();
        tm.listen(myPhoneCallListener, PhoneStateListener.LISTEN_CALL_STATE);
        
    }
}
 
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    
    
<TextView  
    android:id="@+id/phonestate"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    
    />
</LinearLayout>

 

 

main.xml

<?xml
version="1.0" encoding="UTF-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android
"
     package="org.me.android_callstate">
    <application
>
         <activity
android:name=".MainActivity" android:label="MainActivity">
            <intent-filter
>
                <action
android:name="android.intent.action.MAIN"/>
                <category
android:name="android.intent.category.LAUNCHER"/>
            </intent-filter
>
        </activity
>
    </application
>
    <
uses-permission android:name="android.permission.READ_PHONE_STATE"></
uses-permission>


</manifest
>

 

不要忘記上面紅色字型的地方，不讓會錯誤的。