当电话来电的时候，我们要监控着电话号码的来电，哪我们是通过代码控制，下面我们看看利用吐丝显示来电显示
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, "正在通话中....", 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 >
不要忘记上面红色字体的地方，不让会错误的。