我正在创建来电接收活动SipDemo
。我的活动有两个按钮“接听电话”和“拒绝电话”。当我接到来电时,我自己的活动是打开的,例如 ----> 来电类 ----> onReceive()
----> 转到我的呼叫选择活动。这是上面的两个按钮,例如接受和拒绝呼叫。但是当我点击“接听电话”时。一个Nullpointer Exception
生成。它在 SipAudiocall 传入;
这是即将到来的课程:-
static SipAudioCall incomingCall = null;
@Override
public void onReceive(final Context context, Intent intent) {
Intent startActivity = new Intent();
startActivity.setClass(context, Mycall.class);
startActivity.setAction(IncomingCallReceiver.class.getName());
startActivity.setFlags(
Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
context.startActivity(startActivity);
}
public static void acceptCall() {
incomingCall.sendDtmf(9);
try {
incomingCall.sendDtmf(9);
incomingCall.answerCall(200);
//wtActivity.gototimer("i");
} catch (SipException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// wtActivity.gototimer("i");
}
public void rejectCaLL() {
try {
incomingCall.endCall();
} catch (SipException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
这是我的电话选择活动课程:-
public class Mycall extends Activity {
Button acct;
IncomingCallReceiver incomingCallReceiver;
@Override
public void onCreate(Bundle savedInstanceState) {
// Note that none of the preferences are actually defined here.
// They're all in the XML file res/xml/preferences.xml.
super.onCreate(savedInstanceState);
setContentView(R.layout.my);
acct = (Button) findViewById(R.id.button1);
acct.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
IncomingCallReceiver.acceptCall();
}
});
}
}
这是 AndroidManifest.xml :-
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.sip">
<application android:icon="@drawable/icon" android:label="SipDemo">
<service android:name=".MService">
</service>
<activity android:name=".WalkieTalkieActivity"
android:configChanges="orientation|keyboardHidden">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity android:name=".SipSettings" android:label="set_preferences"/>
<receiver android:name=".IncomingCallReceiver" android:enabled="true" android:label="Call Receiver">
<intent-filter>
<action android:name="android.SipDemo.INCOMING_CALL" />
</intent-filter>
</receiver>
<activity android:name=".Mycall"
>
</activity>
<activity android:name=".Myclass"/>
</application>
<uses-sdk android:minSdkVersion="9" />
<uses-permission android:name="android.permission.USE_SIP" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-feature android:name="android.hardware.sip.voip" android:required="true" />
<uses-feature android:name="android.hardware.wifi" android:required="true" />
<uses-feature android:name="android.hardware.microphone" android:required="true" />
请高手帮帮我。我从 1 个月开始就涉及到这个问题。
我在等你的回复。
谢谢