[stacktrace] Save stacktrace when crash

app/src/main/java/com/keylesspalace/tusky/SplashActivity.kt

@@ -20,8 +20,8 @@ import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import com.keylesspalace.tusky.db.AccountManager
 import com.keylesspalace.tusky.di.Injectable
-
 import com.keylesspalace.tusky.util.NotificationHelper
+import net.accelf.yuito.CustomUncaughtExceptionHandler
 import javax.inject.Inject
 
 class SplashActivity : AppCompatActivity(), Injectable {
@@ -32,6 +32,9 @@ class SplashActivity : AppCompatActivity(), Injectable {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        val customUncaughtExceptionHandler = CustomUncaughtExceptionHandler(applicationContext)
+        Thread.setDefaultUncaughtExceptionHandler(customUncaughtExceptionHandler)
+
         /** delete old notification channels */
         NotificationHelper.deleteLegacyNotificationChannels(this, accountManager)
 

app/src/main/java/com/keylesspalace/tusky/fragment/preference/PreferencesFragment.kt

@@ -18,6 +18,7 @@ package com.keylesspalace.tusky.fragment.preference
 import android.os.Bundle
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
+import com.keylesspalace.tusky.ComposeActivity
 import com.keylesspalace.tusky.PreferencesActivity
 import com.keylesspalace.tusky.R
 import com.keylesspalace.tusky.util.ThemeUtils
@@ -73,6 +74,8 @@ class PreferencesFragment : PreferenceFragmentCompat() {
         val botDrawable = botIndicatorPreference.context.getDrawable(R.drawable.ic_bot_24dp)
         ThemeUtils.setDrawableTint(context, botDrawable, R.attr.toolbar_icon_tint)
         botIndicatorPreference.icon = botDrawable
+
+        updateStackTracePreference()
     }
 
     override fun onResume() {
@@ -105,6 +108,36 @@ class PreferencesFragment : PreferenceFragmentCompat() {
 
     }
 
+    private fun updateStackTracePreference() {
+
+        val stackTraceCategory = requirePreference("stackTraceCategory")
+
+        val sharedPreferences = preferenceManager.sharedPreferences
+        val stackTrace = sharedPreferences.getString("stack_trace", null)
+        if (stackTrace.isNullOrEmpty()) {
+            preferenceScreen.removePreference(stackTraceCategory)
+        } else {
+            val sendCrashReportPreference = requirePreference("sendCrashReport")
+            sendCrashReportPreference.setOnPreferenceClickListener {
+                activity?.let { activity ->
+                    val intent = ComposeActivity.IntentBuilder()
+                            .tootText("@ars42525@odakyu.app $stackTrace".substring(0, 400))
+                            .contentWarning("Yuito StackTrace")
+                            .build(activity)
+                    activity.startActivity(intent)
+                    sharedPreferences.edit()
+                            .remove("stack_trace")
+                            .apply()
+                }
+                true
+            }
+
+            val stackTracePreference = requirePreference("stackTrace")
+            stackTracePreference.summary = stackTrace
+        }
+
+    }
+
     companion object {
         fun newInstance(): PreferencesFragment {
             return PreferencesFragment()

app/src/main/java/net/accelf/yuito/CustomUncaughtExceptionHandler.java

@@ -0,0 +1,34 @@
+package net.accelf.yuito;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+public class CustomUncaughtExceptionHandler implements Thread.UncaughtExceptionHandler {
+
+    private Context context;
+    private Thread.UncaughtExceptionHandler mDefaultUncaughtExceptionHandler;
+
+    public CustomUncaughtExceptionHandler(Context context) {
+        this.context = context;
+
+        mDefaultUncaughtExceptionHandler = Thread
+                .getDefaultUncaughtExceptionHandler();
+    }
+
+    @Override
+    public void uncaughtException(Thread thread, Throwable e) {
+        StringWriter stringWriter = new StringWriter();
+        e.printStackTrace(new PrintWriter(stringWriter));
+        String stackTrace = stringWriter.toString();
+
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
+        preferences.edit().putString("stack_trace", stackTrace).apply();
+
+        mDefaultUncaughtExceptionHandler.uncaughtException(thread, e);
+    }
+
+}

app/src/main/res/values/strings.xml

@@ -224,6 +224,8 @@
     <string name="pref_title_experimental">Experimental Settings</string>
     <string name="pref_title_experimental_viewpager_offscreen">Increase offscreenPageLimit of ViewPager</string>
     <string name="pref_title_experimental_htl_streaming">Use home timeline streaming</string>
+    <string name="pref_title_stacktrace">Stacktrace</string>
+    <string name="pref_title_stacktrace_send">Send crash report to developer</string>
 
     <string name="app_them_dark">Dark</string>
     <string name="app_theme_light">Light</string>

app/src/main/res/xml/preferences.xml

@@ -125,4 +125,17 @@
             android:key="useHTLStream"
             android:title="@string/pref_title_experimental_htl_streaming" />
     </PreferenceCategory>
+
+    <PreferenceCategory
+        android:key="stackTraceCategory"
+        android:title="@string/pref_title_stacktrace">
+
+        <Preference
+            android:key="sendCrashReport"
+            android:title="@string/pref_title_stacktrace_send" />
+
+        <Preference
+            android:key="stackTrace"
+            android:selectable="false" />
+    </PreferenceCategory>
 </androidx.preference.PreferenceScreen>