测试程序修改

course/frida/MyFridaExample/app/src/main/java/com/ninecents/MainActivity.java

@@ -2,13 +2,75 @@ package com.ninecents;
 
 import androidx.appcompat.app.AppCompatActivity;
 
+import android.graphics.Color;
 import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.Toast;
 
-public class MainActivity extends AppCompatActivity {
+public class MainActivity extends AppCompatActivity implements View.OnClickListener {
+    Button button_member_method;
+    Button button_static_method;
+    Button button_overload_method;
+    static MainActivity _this;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        // 绑定事件
+        button_member_method = (Button) findViewById(R.id.button_member_method);
+        button_member_method.setOnClickListener(this);
+        button_static_method = (Button) findViewById(R.id.button_static_method);
+        button_static_method.setOnClickListener(this);
+        button_overload_method = (Button) findViewById(R.id.button_overload_method);
+        button_overload_method.setOnClickListener(this);
+        _this = this;
+    }
+
+    private int _member_method(String text) {
+        Toast.makeText(getApplicationContext(),text,Toast.LENGTH_SHORT).show();
+
+        // 返回值为0：展示红色，否则展示蓝色
+        return 0;
+    }
+
+    private static void _static_method() {
+        Toast.makeText(MainActivity._this,"button_static_method",Toast.LENGTH_SHORT).show();
+    }
+
+    private void _overload_method(String text) {
+        Toast.makeText(getApplicationContext(),text,Toast.LENGTH_SHORT).show();
+    }
+
+    private void _overload_method(int val) {
+        String text;
+        if (val == 1) {
+            text = "111111111";
+        } else {
+            text = "222222222";
+        }
+        Toast.makeText(getApplicationContext(),text,Toast.LENGTH_SHORT).show();
+    }
+
+    @Override
+    public void onClick(View view) {
+        switch (view.getId()) {
+            case R.id.button_member_method:
+                int ret = _member_method("这是button_member_method");
+                if (ret == 0) {
+                    button_member_method.setBackgroundColor(Color.parseColor("#FF0000"));
+                } else {
+                    button_member_method.setBackgroundColor(Color.parseColor("#0000FF"));
+                }
+                break;
+            case R.id.button_static_method:
+                MainActivity._static_method();
+                break;
+            case R.id.button_overload_method:
+                _overload_method(1);
+                break;
+        }
     }
 }
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course/frida/MyFridaExample/app/src/main/res/layout/activity_main.xml

@@ -7,12 +7,35 @@
     tools:context=".MainActivity">
 
     <TextView
+        android:id="@+id/hello"
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:layout_height="96px"
+        android:text="Hello Frida!"
         app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <Button
+        android:id="@+id/button_member_method"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="成员函数"
+        app:layout_constraintTop_toBottomOf="@+id/hello"
+        app:layout_constraintLeft_toLeftOf="parent" />
+
+    <Button
+        android:id="@+id/button_static_method"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="静态函数"
+        app:layout_constraintTop_toBottomOf="@+id/button_member_method"
+        app:layout_constraintLeft_toLeftOf="parent" />
+
+    <Button
+        android:id="@+id/button_overload_method"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="重载函数"
+        app:layout_constraintTop_toBottomOf="@+id/button_static_method"
+        app:layout_constraintLeft_toLeftOf="parent" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
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