The android-demo from gengjiawen

I am a software engineer in China, most of my work is on android, react-native, frontend and Node.js.

Collaborator of Node.js, react-native, uvwasi

Currently mainly focus on V8, quic, wasi and compiler staff.

Thanks for my open-source supporter

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segment fault demo

Ref: https://proandroiddev.com/debugging-native-crashes-in-android-apps-2b86fd7113d8

diff --git a/play-native/src/main/cpp/native-lib.cpp b/play-native/src/main/cpp/native-lib.cpp
index a04454d..f084bff 100644
--- a/play-native/src/main/cpp/native-lib.cpp
+++ b/play-native/src/main/cpp/native-lib.cpp
@@ -15,3 +15,8 @@ Java_com_gengjiawen_play_MainActivity_stringFromJNI(
     LOGI("int %d, string: %s", a, hello.c_str());
     return env->NewStringUTF(hello.c_str());
 }
+extern "C"
+JNIEXPORT jstring JNICALL
+Java_com_gengjiawen_play_MainActivity_segmentTrigger(JNIEnv *env, jobject thiz) {
+    *(int*)0 = 0;
+}
\ No newline at end of file
diff --git a/play-native/src/main/java/com/gengjiawen/play/MainActivity.kt b/play-native/src/main/java/com/gengjiawen/play/MainActivity.kt
index cb1c9a3..d7e3293 100644
--- a/play-native/src/main/java/com/gengjiawen/play/MainActivity.kt
+++ b/play-native/src/main/java/com/gengjiawen/play/MainActivity.kt
@@ -11,9 +11,14 @@ class MainActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
         titleLabel.text = stringFromJNI()
+        sfButton.setOnClickListener({
+            segmentTrigger()
+        })
+
     }
 
     external fun stringFromJNI(): String
+    external fun segmentTrigger(): String
 
     companion object {
 
diff --git a/play-native/src/main/res/layout/activity_main.xml b/play-native/src/main/res/layout/activity_main.xml
index f504122..1e6d08f 100644
--- a/play-native/src/main/res/layout/activity_main.xml
+++ b/play-native/src/main/res/layout/activity_main.xml
@@ -2,13 +2,20 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent" >
 
     <TextView
         android:id="@+id/titleLabel"
+        android:layout_width="487dp"
+        android:layout_height="50dp"
+        android:text="Hello World!" />
+
+    <Button
+        android:id="@+id/sfButton"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="Hello World!" />
+        android:text="Segment Fault" />
 
 </LinearLayout>
\ No newline at end of file