bf7865b27e
- When SliceManager try to pinSlice, process may not have the permssion yet, so in Androix lib it use try/catch to avoid Security exception. However, if SliceManger quickly unpinSlice after pinSlice, process may still not get the permission yet, then due to no security exception, it cause the settings crash. Bug: 283065718 Test: atest passed Test: Manual test passed Change-Id: I2293fca73e65dfaa34237abe57e0c6a3fe0f62bb
109 lines
3.3 KiB
Java
109 lines
3.3 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.slices;
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import android.content.Context;
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import android.net.Uri;
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import android.util.Log;
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import androidx.annotation.VisibleForTesting;
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import androidx.lifecycle.LiveData;
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import androidx.lifecycle.Observer;
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import androidx.preference.PreferenceScreen;
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import androidx.slice.Slice;
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import androidx.slice.widget.SliceLiveData;
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import androidx.slice.widget.SliceView;
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import com.android.settings.core.BasePreferenceController;
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import com.android.settingslib.core.lifecycle.LifecycleObserver;
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import com.android.settingslib.core.lifecycle.events.OnStart;
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import com.android.settingslib.core.lifecycle.events.OnStop;
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/**
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* Default {@link BasePreferenceController} for {@link SliceView}. It will take {@link Uri} for
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* Slice and display what's inside this {@link Uri}
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*/
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public class SlicePreferenceController extends BasePreferenceController implements
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LifecycleObserver, OnStart, OnStop, Observer<Slice> {
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private static final String TAG = "SlicePreferenceController";
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@VisibleForTesting
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LiveData<Slice> mLiveData;
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@VisibleForTesting
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SlicePreference mSlicePreference;
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private Uri mUri;
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public SlicePreferenceController(Context context, String preferenceKey) {
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super(context, preferenceKey);
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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super.displayPreference(screen);
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mSlicePreference = screen.findPreference(getPreferenceKey());
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}
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@Override
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public int getAvailabilityStatus() {
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return mUri != null ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
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}
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public void setSliceUri(Uri uri) {
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mUri = uri;
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mLiveData = SliceLiveData.fromUri(mContext, mUri, (int type, Throwable source) -> {
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Log.w(TAG, "Slice may be null. uri = " + uri + ", error = " + type);
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});
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//TODO(b/120803703): figure out why we need to remove observer first
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removeLiveDataObserver();
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}
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@Override
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public void onStart() {
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if (mLiveData == null) {
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return;
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}
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try {
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mLiveData.observeForever(this);
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} catch (SecurityException e) {
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Log.w(TAG, "observeForever - no permission");
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}
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}
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@Override
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public void onStop() {
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removeLiveDataObserver();
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}
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@Override
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public void onChanged(Slice slice) {
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mSlicePreference.onSliceUpdated(slice);
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}
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private void removeLiveDataObserver() {
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if (mLiveData == null) {
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return;
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}
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try {
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mLiveData.removeObserver(this);
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} catch (SecurityException e) {
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Log.w(TAG, "removeLiveDataObserver - no permission");
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}
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}
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}
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