Added AboutActivity

app/src/main/java/com/topjohnwu/magisk/AboutActivity.java

@@ -0,0 +1,146 @@
+package com.topjohnwu.magisk;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.text.Html;
+import android.text.TextUtils;
+import android.text.method.LinkMovementMethod;
+import android.view.View;
+import android.widget.TextView;
+
+import com.topjohnwu.magisk.utils.RowItem;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+
+public class AboutActivity extends AppCompatActivity {
+
+    private static final String SOURCE_CODE_URL = "https://github.com/topjohnwu/MagiskManager";
+    private static final String XDA_THREAD = "http://forum.xda-developers.com/android/software/mod-magisk-v1-universal-systemless-t3432382";
+
+    @BindView(R.id.toolbar) Toolbar toolbar;
+
+    @BindView(R.id.app_version_info) RowItem appVersionInfo;
+    @BindView(R.id.app_changelog) RowItem appChangelog;
+    @BindView(R.id.app_developers) RowItem appDevelopers;
+    @BindView(R.id.app_translators) RowItem appTranslators;
+    @BindView(R.id.app_source_code) RowItem appSourceCode;
+    @BindView(R.id.support_thread) RowItem supportThread;
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_about);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);
+        }
+        ButterKnife.bind(this);
+
+        setSupportActionBar(toolbar);
+        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                finish();
+            }
+        });
+
+        ActionBar ab = getSupportActionBar();
+        if (ab != null) {
+            ab.setTitle(R.string.about);
+            ab.setDisplayHomeAsUpEnabled(true);
+        }
+
+        appVersionInfo.setSummary(BuildConfig.VERSION_NAME);
+
+        String changes = null;
+        try {
+            InputStream is = getAssets().open("changelog.html");
+            int size = is.available();
+
+            byte[] buffer = new byte[size];
+            is.read(buffer);
+            is.close();
+
+            changes = new String(buffer);
+        } catch (IOException ignored) {
+        }
+
+        appChangelog.removeSummary();
+        if (changes == null) {
+            appChangelog.setVisibility(View.GONE);
+        } else {
+            final String finalChanges = changes;
+            appChangelog.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    AlertDialog d = new AlertDialog.Builder(AboutActivity.this)
+                            .setTitle(R.string.app_changelog)
+                            .setMessage(Html.fromHtml(finalChanges))
+                            .setPositiveButton(android.R.string.ok, null)
+                            .create();
+
+                    d.show();
+
+                    //noinspection ConstantConditions
+                    ((TextView) d.findViewById(android.R.id.message)).setMovementMethod(LinkMovementMethod.getInstance());
+                }
+            });
+        }
+
+        appDevelopers.removeSummary();
+        appDevelopers.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                AlertDialog d = new AlertDialog.Builder(AboutActivity.this)
+                        .setTitle(R.string.app_developers)
+                        .setMessage(Html.fromHtml(getString(R.string.app_developers_)))
+                        .setPositiveButton(android.R.string.ok, null)
+                        .create();
+
+                d.show();
+                //noinspection ConstantConditions
+                ((TextView) d.findViewById(android.R.id.message)).setMovementMethod(LinkMovementMethod.getInstance());
+            }
+        });
+
+        String translators = getString(R.string.translators);
+        if (TextUtils.isEmpty(translators)) {
+            appTranslators.setVisibility(View.GONE);
+        } else {
+            appTranslators.setSummary(translators);
+        }
+
+        appSourceCode.removeSummary();
+        appSourceCode.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(SOURCE_CODE_URL)));
+            }
+        });
+
+        supportThread.removeSummary();
+        supportThread.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(XDA_THREAD)));
+            }
+        });
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        getWindow().setStatusBarColor(getResources().getColor(R.color.primary_dark));
+    }
+}

app/src/main/java/com/topjohnwu/magisk/WelcomeActivity.java

@@ -1,5 +1,6 @@
 package com.topjohnwu.magisk;
 
+import android.content.Intent;
 import android.os.AsyncTask;
 import android.os.Build;
 import android.os.Bundle;
@@ -130,6 +131,9 @@ public class WelcomeActivity extends AppCompatActivity implements NavigationView
                 setTitle(R.string.log);
                 navFragment = new LogFragment();
                 break;
+            case R.id.app_about:
+                startActivity(new Intent(this, AboutActivity.class));
+                return;
         }
 
         if (navFragment != null) {

app/src/main/java/com/topjohnwu/magisk/utils/RowItem.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright 2016 dvdandroid
+ *
+ * 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.
+ */
+
+package com.topjohnwu.magisk.utils;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.topjohnwu.magisk.R;
+
+/**
+ * @author dvdandroid
+ */
+public class RowItem extends LinearLayout {
+
+    private final String title;
+    private final Drawable icon;
+
+    private final TextView mTitle;
+    private final TextView mSummary;
+    private final ImageView mIcon;
+
+    private final View mView;
+
+    public RowItem(Context context) {
+        this(context, null);
+    }
+
+    public RowItem(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public RowItem(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        LayoutInflater.from(context).inflate(R.layout.info_item_row, this);
+        TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.RowItem, 0, 0);
+
+        try {
+            title = a.getString(R.styleable.RowItem_text);
+            icon = a.getDrawable(R.styleable.RowItem_icon);
+        } finally {
+            a.recycle();
+        }
+
+        mView = findViewById(R.id.container);
+
+        mTitle = (TextView) findViewById(android.R.id.title);
+        mSummary = (TextView) findViewById(android.R.id.summary);
+        mIcon = (ImageView) findViewById(android.R.id.icon);
+
+        mTitle.setText(title);
+        mIcon.setImageDrawable(icon);
+    }
+
+    @Override
+    public void setOnClickListener(OnClickListener l) {
+        super.setOnClickListener(l);
+
+        mView.setOnClickListener(l);
+    }
+
+    public void setSummary(String s) {
+        mSummary.setText(s);
+    }
+
+    public void removeSummary() {
+        mSummary.setVisibility(GONE);
+    }
+}