Android(安卓)N来电拦截

骚扰号码存放的URI

BlockedNumberContract.BlockedNumbers.CONTENT_URI

存放号码的列

BlockedNumberContract.BlockedNumbers.COLUMN_ORIGINAL_NUMBER

ContentResolver contentResolver = getContext().getContentResolver();

ContentValues newValues = newContentValues();

newValues.put(BlockedNumberContract.BlockedNumbers.COLUMN_ORIGINAL_NUMBER,

mNumber);

contentResolver.insert(BlockedNumberContract.BlockedNumbers.CONTENT_URI,

newValues);

号码是否存在

BlockedNumberContract.isBlocked(getContext(),mNumber)

https://developer.android.com/reference/android/provider/BlockedNumberContract.html

拦截原理

Telcomm(packages/services/Telecomm)

CallsManager onSuccessfulIncomingCall

@Override

public void onSuccessfulIncomingCall(Call incomingCall) {

Log.d(this, "onSuccessfulIncomingCall");

List filters = newArrayList<>();

filters.add(new DirectToVoicemailCallFilter(mCallerInfoLookupHelper));

filters.add(new AsyncBlockCheckFilter(mContext,new BlockCheckerAdapter()));

filters.add(new CallScreeningServiceFilter(mContext, this,mPhoneAccountRegistrar,

mDefaultDialerManagerAdapter,

newParcelableCallUtils.Converter(), mLock));

new IncomingCallFilter(mContext, this,incomingCall, mLock,

mTimeoutsAdapter,filters).performFiltering();

}

public void performFiltering() {

Log.event(mCall, Log.Events.FILTERING_INITIATED);

Log.d(this, "[performFiltering], timeout = "

+mTimeoutsAdapter.getCallScreeningTimeoutMillis(mContext.getContentResolver()));

for (CallFilter filter : mFilters) {

filter.startFilterLookup(mCall,this);

}

mHandler.postDelayed(new Runnable("ICF.pFTO") { //performFiltering time-out

@Override

public void loggedRun() {

// synchronized to prevent arace on mResult and to enter into Telecom.

synchronized (mTelecomLock) {

if (mIsPending) {

Log.i(IncomingCallFilter.this, "Call filtering has timed out.");

Log.event(mCall,Log.Events.FILTERING_TIMED_OUT);

mListener.onCallFilteringComplete(mCall, mResult);

mIsPending = false;

}

}.prepare(),mTimeoutsAdapter.getCallScreeningTimeoutMillis(mContext.getContentResolver()));

}

AsyncBlockCheckFilter

protected void onPostExecute(Boolean isBlocked) {

CallFilteringResult result;

if (isBlocked) {

result = new CallFilteringResult(

false, // shouldAllowCall

true, //shouldReject

false, //shouldAddToCallLog

false //shouldShowNotification

);

} else {

result = new CallFilteringResult(

true, // shouldAllowCall

false, // shouldReject

true, // shouldAddToCallLog

true //shouldShowNotification

);

}

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