add licenses

app/src/main/AndroidManifest.xml

@@ -90,6 +90,7 @@
 
         <activity android:name=".ui.activities.AboutActivity" />
         <activity android:name=".ui.activities.ConfirmationIntentWrapperActivity" />
+        <activity android:name=".ui.activities.LicensesActivity" />
 
         <service android:name=".backup.BackupService" />
 

app/src/main/assets/licenses/Android AppCompat Library V7

@@ -0,0 +1,13 @@
+Copyright (C) 2019 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

app/src/main/assets/licenses/Android Lifecycle Extensions

@@ -0,0 +1,13 @@
+Copyright (C) 2019 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

app/src/main/assets/licenses/Android Support Preference V7

@@ -0,0 +1,13 @@
+Copyright (C) 2019 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

app/src/main/assets/licenses/Glide

@@ -0,0 +1,94 @@
+License for everything not in third_party and not otherwise marked:
+
+Copyright 2014 Google, Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification, are
+permitted provided that the following conditions are met:
+
+   1. Redistributions of source code must retain the above copyright notice, this list of
+         conditions and the following disclaimer.
+
+   2. Redistributions in binary form must reproduce the above copyright notice, this list
+         of conditions and the following disclaimer in the documentation and/or other materials
+         provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY GOOGLE, INC. ``AS IS'' AND ANY EXPRESS OR IMPLIED
+WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GOOGLE, INC. OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are those of the
+authors and should not be interpreted as representing official policies, either expressed
+or implied, of Google, Inc.
+---------------------------------------------------------------------------------------------
+License for third_party/disklrucache:
+
+Copyright 2012 Jake Wharton
+Copyright 2011 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+---------------------------------------------------------------------------------------------
+License for third_party/gif_decoder:
+
+Copyright (c) 2013 Xcellent Creations, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+---------------------------------------------------------------------------------------------
+License for third_party/gif_encoder/AnimatedGifEncoder.java and
+third_party/gif_encoder/LZWEncoder.java:
+
+No copyright asserted on the source code of this class. May be used for any
+purpose, however, refer to the Unisys LZW patent for restrictions on use of
+the associated LZWEncoder class. Please forward any corrections to
+[email protected].
+
+-----------------------------------------------------------------------------
+License for third_party/gif_encoder/NeuQuant.java
+
+Copyright (c) 1994 Anthony Dekker
+
+NEUQUANT Neural-Net quantization algorithm by Anthony Dekker, 1994. See
+"Kohonen neural networks for optimal colour quantization" in "Network:
+Computation in Neural Systems" Vol. 5 (1994) pp 351-367. for a discussion of
+the algorithm.
+
+Any party obtaining a copy of these files from the author, directly or
+indirectly, is granted, free of charge, a full and unrestricted irrevocable,
+world-wide, paid up, royalty-free, nonexclusive right and license to deal in
+this software and documentation files (the "Software"), including without
+limitation the rights to use, copy, modify, merge, publish, distribute,
+sublicense, and/or sell copies of the Software, and to permit persons who
+receive copies from any such party to do so, with the only requirement being
+that this copyright notice remain intact.

app/src/main/assets/licenses/Material Components for Android

@@ -0,0 +1,13 @@
+Copyright (C) 2019 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

app/src/main/assets/licenses/PseudoApkSigner

@@ -0,0 +1,13 @@
+Copyright (C) 2019 Aefyr
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

app/src/main/assets/licenses/Shizuku

@@ -0,0 +1,13 @@
+Copyright (C) 2019 Rikka
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

app/src/main/assets/licenses/android-filepicker

@@ -0,0 +1,13 @@
+Copyright (C) 2016 Angad Singh
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

app/src/main/java/com/aefyr/sai/adapters/LicensesAdapter.java

@@ -0,0 +1,66 @@
+package com.aefyr.sai.adapters;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.aefyr.sai.R;
+import com.aefyr.sai.model.licenses.License;
+
+import java.util.List;
+
+public class LicensesAdapter extends RecyclerView.Adapter<LicensesAdapter.ViewHolder> {
+
+    private LayoutInflater mInflater;
+
+    private List<License> mLicenses;
+
+    public LicensesAdapter(Context c) {
+        mInflater = LayoutInflater.from(c);
+    }
+
+    public void setLicenses(List<License> licenses) {
+        mLicenses = licenses;
+        notifyDataSetChanged();
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return new ViewHolder(mInflater.inflate(R.layout.item_license, parent, false));
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        holder.bind(mLicenses.get(position));
+    }
+
+    @Override
+    public int getItemCount() {
+        return mLicenses == null ? 0 : mLicenses.size();
+    }
+
+    class ViewHolder extends RecyclerView.ViewHolder {
+
+        private TextView mSubject;
+        private TextView mText;
+
+        private ViewHolder(@NonNull View itemView) {
+            super(itemView);
+
+            mSubject = itemView.findViewById(R.id.tv_subject);
+            mText = itemView.findViewById(R.id.tv_text);
+        }
+
+        private void bind(License license) {
+            mSubject.setText(license.subject);
+            mText.setText(license.text);
+        }
+    }
+
+}

app/src/main/java/com/aefyr/sai/model/licenses/License.java

@@ -0,0 +1,13 @@
+package com.aefyr.sai.model.licenses;
+
+public class License {
+
+    public String subject;
+    public String text;
+
+    public License(String subject, String text) {
+        this.subject = subject;
+        this.text = text;
+    }
+
+}

app/src/main/java/com/aefyr/sai/ui/activities/AboutActivity.java

@@ -18,6 +18,7 @@ protected void onCreate(Bundle savedInstanceState) {
         ((TextView) findViewById(R.id.tv_about_app)).setText(String.format("%s %s", getString(R.string.app_name_full), BuildConfig.VERSION_NAME));
         findViewById(R.id.button_about_source).setOnClickListener((v) -> openLink(getString(R.string.about_source_link)));
         findViewById(R.id.button_about_donate).setOnClickListener((v) -> openLink(getString(R.string.about_donate_link)));
+        findViewById(R.id.button_about_licenses).setOnClickListener((v) -> startActivity(new Intent(this, LicensesActivity.class)));
     }
 
     private void openLink(String link) {

app/src/main/java/com/aefyr/sai/ui/activities/LicensesActivity.java

@@ -0,0 +1,32 @@
+package com.aefyr.sai.ui.activities;
+
+import android.os.Bundle;
+
+import androidx.annotation.Nullable;
+import androidx.lifecycle.ViewModelProviders;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.aefyr.sai.R;
+import com.aefyr.sai.adapters.LicensesAdapter;
+import com.aefyr.sai.viewmodels.LicensesViewModel;
+
+public class LicensesActivity extends ThemedActivity {
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_licenses);
+
+        RecyclerView recyclerView = findViewById(R.id.rv_licenses);
+
+        recyclerView.setLayoutManager(new LinearLayoutManager(this));
+        recyclerView.getRecycledViewPool().setMaxRecycledViews(0, 16);
+
+        LicensesAdapter adapter = new LicensesAdapter(this);
+        recyclerView.setAdapter(adapter);
+
+        LicensesViewModel viewModel = ViewModelProviders.of(this).get(LicensesViewModel.class);
+        viewModel.getLicenses().observe(this, adapter::setLicenses);
+    }
+}

app/src/main/java/com/aefyr/sai/utils/IOUtils.java

@@ -4,13 +4,15 @@
 import android.util.Log;
 
 import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
+import java.nio.charset.Charset;
 import java.util.zip.CRC32;
 
 public class IOUtils {
@@ -75,4 +77,11 @@ public static Thread writeStreamToStringBuilder(StringBuilder builder, InputStre
         return t;
     }
 
+    public static String readStream(InputStream aInputStream, Charset charset) throws IOException {
+        try (InputStream inputStream = aInputStream; ByteArrayOutputStream outputStream = new ByteArrayOutputStream()) {
+            copyStream(inputStream, outputStream);
+            return new String(outputStream.toByteArray(), charset);
+        }
+    }
+
 }