Improve Settings

app/src/main/java/com/hippo/ehviewer/AppConfig.java

@@ -33,6 +33,7 @@ public class AppConfig {
     private static final String IMAGE = "image";
     private static final String CRASH = "crash";
     private static final String PARSE_ERROR = "parse_error";
+    private static final String LOGCAT = "logcat";
 
     private static Context sContext;
 
@@ -97,6 +98,11 @@ public class AppConfig {
         return getDirInExternalAppDir(PARSE_ERROR);
     }
 
+    @Nullable
+    public static File getExternalLogcatDir() {
+        return getDirInExternalAppDir(LOGCAT);
+    }
+
     @Nullable
     public static File createExternalTempFile() {
         return FileUtils.createTempFile(getExternalTempDir(), null);

app/src/main/java/com/hippo/ehviewer/ui/fragment/AboutFragment.java

@@ -57,6 +57,7 @@ public class AboutFragment extends PreferenceFragment
         Preference checkForUpdate = findPreference(KEY_CHECK_FOR_UPDATES);
 
         author.setSummary(getString(R.string.settings_about_author_summary).replace('$', '@'));
+        donate.setSummary(getString(R.string.settings_about_donate_summary).replace('$', '@'));
 
         author.setOnPreferenceClickListener(this);
         googlePlus.setOnPreferenceClickListener(this);

app/src/main/java/com/hippo/ehviewer/ui/fragment/AdvancedFragment.java

@@ -16,16 +16,52 @@
 
 package com.hippo.ehviewer.ui.fragment;
 
+import android.content.res.Resources;
 import android.os.Bundle;
+import android.preference.Preference;
 import android.preference.PreferenceFragment;
+import android.widget.Toast;
 
+import com.hippo.ehviewer.AppConfig;
 import com.hippo.ehviewer.R;
+import com.hippo.util.LogCat;
+import com.hippo.util.ReadableTime;
 
-public class AdvancedFragment extends PreferenceFragment {
+import java.io.File;
+
+public class AdvancedFragment extends PreferenceFragment implements Preference.OnPreferenceClickListener {
+
+    private static final String KEY_DUMP_LOGCAT = "dump_logcat";
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         addPreferencesFromResource(R.xml.advanced_settings);
+
+        Preference dumpLogcat = findPreference(KEY_DUMP_LOGCAT);
+
+        dumpLogcat.setOnPreferenceClickListener(this);
+    }
+
+    @Override
+    public boolean onPreferenceClick(Preference preference) {
+        String key = preference.getKey();
+        if (KEY_DUMP_LOGCAT.equals(key)) {
+            boolean ok;
+            File file = null;
+            File dir = AppConfig.getExternalLogcatDir();
+            if (dir != null) {
+                file = new File(dir, "logcat-" + ReadableTime.getFilenamableTime(System.currentTimeMillis()) + ".txt");
+                ok = LogCat.save(file);
+            } else {
+                ok = false;
+            }
+            Resources resources = getResources();
+            Toast.makeText(getActivity(),
+                    ok ? resources.getString(R.string.settings_about_dump_logcat_to, file.getPath()) :
+                            resources.getString(R.string.settings_about_dump_logcat_failed), Toast.LENGTH_SHORT).show();
+            return true;
+        }
+        return false;
     }
 }

app/src/main/java/com/hippo/util/LogCat.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2015 Hippo Seven
+ *
+ * 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.hippo.util;
+
+import com.hippo.yorozuya.FileUtils;
+import com.hippo.yorozuya.IOUtils;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+public final class LogCat {
+
+    private LogCat() {
+    }
+
+    public static boolean save(File file) {
+        if (!FileUtils.ensureFile(file)) {
+            return false;
+        }
+
+        try {
+            Process p = Runtime.getRuntime().exec("logcat -d");
+            IOUtils.copy(p.getInputStream(), new FileOutputStream(file));
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+}