首先感叹一下android强大,它可以把同一个apk里面得不同Actvity分别运行在不同的进程中,比如我想让自己的应用中Activity运行在Phone进程中,那么我需要做三个事情。
本文包含三个知识点:
1.监听去电接通 2.apk获取root权限 3. 运行时将apk push 到system/app
4.shareUid设置为phone 5.Android.mk设置为platform签名 6.android:process="com.android.phone" 6.重启手机生效
(1)
<activity(2)
android:process="com.android.phone"
android:label="@string/app_name"
android:name=".AutoCallActivity" >
</activity>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.spreadst.drag"
coreApp="true"
android:sharedUserId="android.uid.system"
android:versionCode="1"
(3)
LOCAL_PACKAGE_NAME := autocall为什么会有这个需求呢?TelephonyManager 中状态 只有 IDLE 空闲状态, 来电接通状态 ,拨打状态,没有去电接通状态,参考phone中得实现如下:
#LOCAL_CERTIFICATE := shared
LOCAL_CERTIFICATE := platform
Phone phone = PhoneFactory.getDefaultPhone();
这个调用是不能运行在phone以外的进程中的,不信你可以试一下,请记住一个进程的主线程的looper是唯一的
原因如下:
if (sLooper != Looper.myLooper()) {去电接通若干秒之后挂断代码如下,由于使用了hide class,所以必须在android源代码底下编译,当然你也可以通过反射、AIDL、class.jar等方式解决这个问题。
throw new RuntimeException(
"PhoneFactory.getDefaultPhone must be called from Looper thread");
}
CallManager mCM = CallManager.getInstance();
Phone phone = PhoneFactory.getDefaultPhone();
mCM.registerPhone(phone);
mCM.registerForPreciseCallStateChanged(mHandler, PHONE_STATE_CHANGED, null);
private Handler mHandler=new Handler(){
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case PHONE_STATE_CHANGED:
updatePhoneSateChange();
break;
default:
break;
}
};
};
private void updatePhoneSateChange(){
Call fgCall = mCM.getActiveFgCall();
if (mCM.hasActiveRingingCall()) {
fgCall = mCM.getFirstActiveRingingCall();
}
final Call.State state = fgCall.getState();
switch (state) {
case IDLE:
break;
case ACTIVE://去电接通
Log.d("yzy","ACTVIE");
final Timer timer = new Timer();
if(mode == Mode.mode2){
timer.schedule(new TimerTask() {
@Override
public void run() {
try {
Log.d("yzy", "endcall()");
mITelephony.endCall();
timer.cancel();
} catch (RemoteException e) {
e.printStackTrace();
}
}
}, holdonDuration * 1000, holdonDuration * 1000);
}
//mITelephony.endCall();
break;
default:
break;
}
}
如果你将这个apk 简单的install 会报告如下错误:不存在该共享用户或签名不匹配,这是因为
android:sharedUserId="android.uid.system"
必须放到system/app目录下才能工作。这就由牵扯出了两个问题,临时获取root权限与运行时拷贝.
其他关键代码:
private ITelephony mITelephony;
mITelephony = ITelephony.Stub.asInterface(ServiceManager
.getService(Context.TELEPHONY_SERVICE));
mPhoneStateListener = getPhoneStateListener();
((TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE)).listen(
mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
private PhoneStateListener getPhoneStateListener() {
return new PhoneStateListener() {
@Override
public void onCallStateChanged(int state, String incomingNumber) {
try {
Log.d("yzy"," state: "
+ mITelephony.getCallState());
} catch (RemoteException e) {
e.printStackTrace();
}
}
};
}