last commit

ResultHandler/MainActivity.java

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+package com.example.myapplication;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Toast;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+
+    public void onClick(View v){
+        Intent intent = new Intent(this, PuppetActivity.class);
+        ResultHandler.addResultHandler(intent, () -> {
+            Toast.makeText(this, "lol!", Toast.LENGTH_LONG).show();
+        });
+        startActivityForResult(intent, 0);
+        //ResultHandler handler = new ResultHandler(this);
+
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        ResultHandler handler = new ResultHandler(this);
+        handler.onIncomingIntent(requestCode, resultCode, data);
+    }
+}

ResultHandler/PuppetActivity.java

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+package com.example.myapplication;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.os.Bundle;
+
+public class PuppetActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_pupet);
+    }
+}

ResultHandler/ResultAction.java

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+package com.example.myapplication;
+
+public interface ResultAction {
+    void action();
+}

ResultHandler/ResultHandler.java

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+package com.example.myapplication;
+
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Random;
+
+public class ResultHandler {
+
+    private Context context;
+    private static Map<Integer, ResultAction> map = new HashMap<>();
+    private static final int RANDOM_BOUNDS = 256;
+    private static final String LOG_TAG = "ResultHandler";
+
+    public static final String ACTION_ID_TITLE = "ACTION_ID";
+
+    public ResultHandler(Context context) {
+        this.context = context;
+    }
+
+    /**
+     * Статические поля кодов обработки входящих интентов
+     */
+    public enum Fields{
+        FILE_OPEN,
+    }
+
+    public static void addResultHandler(Intent intent, ResultAction action){
+        int random = (new Random()).nextInt(RANDOM_BOUNDS);
+        intent.putExtra(ACTION_ID_TITLE, random);
+        map.put(random, action);
+
+    }
+
+    public void onIncomingIntent(int requestCode, int resultCode, Intent data){
+        if(data != null){
+            if(data.hasExtra(ACTION_ID_TITLE)){
+                int id = data.getExtras().getInt(ACTION_ID_TITLE);
+                map.get(id).action();
+            }else{
+                Log.e(LOG_TAG, "Incoming intent haven't got ACTION_ID!!");
+                throw new RuntimeException(
+                        "ResultHandler::RuntimeException can't parse incoming intent! Shutting down(("
+                );
+            }
+        }else{
+            Log.e(LOG_TAG, "Incoming intent is null!!");
+            throw new RuntimeException(
+                    "ResultHandler::RuntimeException can't parse incoming intent! Shutting down(("
+            );
+        }
+    }
+}