请按照如下方法进行修改：frameworks\base\media\java\android\media\MediaFocusControl.java：1、import packages：import com.android.internal.telephony.ITelephony;import android.os.ServiceManager;2、增加获取当前Phone Call State的方法getPhoneCallState()： private int getPhoneCallState(){ int phoneCallState = TelephonyManager.CALL_STATE_IDLE; TelephonyManager telephonyManager = (TelephonyManager)mContext.getSystemService(Context.TELEPHONY_SERVICE); ITelephony telephonyService = ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); if (telephonyService != null) { Log.w(TAG, "getPhoneCallState: mTelephonyService != null"); try { phoneCallState = telephonyService.getPreciseCallState(); Log.w(TAG, "getPhoneCallState: telephonyService.getPreciseCallState() = " + phoneCallState); } catch (RemoteException ex) { if(telephonyManager != null){ phoneCallState = telephonyManager.getCallState(); Log.w(TAG, "getPhoneCallState: telephonyManager.getCallState() = " + phoneCallState); } Log.w(TAG, "Catch exception when getPreciseCallState: ex = " + ex.getMessage()); } } else { Log.w(TAG, "getPhoneCallState: telephonyService == null"); if(telephonyManager != null){ phoneCallState = telephonyManager.getCallState(); Log.w(TAG, "getPhoneCallState: telephonyManager.getCallState() = " + phoneCallState); } } Log.w(TAG, "getPhoneCallState: phoneCallState = " + phoneCallState); return phoneCallState; }3、修改 private boolean canReassignAudioFocus() { // focus requests are rejected during a phone call or when the phone is ringing // this is equivalent to IN_VOICE_COMM_FOCUS_ID having the focus if (!mFocusStack.isEmpty() && mFocusStack.peek().hasSameClient(IN_VOICE_COMM_FOCUS_ID)) { return false; } return true; }为 private boolean canReassignAudioFocus() { // focus requests are rejected during a phone call or when the phone is ringing // this is equivalent to IN_VOICE_COMM_FOCUS_ID having the focus if (!mFocusStack.isEmpty() && mFocusStack.peek().hasSameClient(IN_VOICE_COMM_FOCUS_ID) && (getPhoneCallState() != TelephonyManager.CALL_STATE_IDLE)) { Log.w(TAG, "canReassignAudioFocus: return false"); return false; } Log.w(TAG, "canReassignAudioFocus: return true"); return true; }
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