Load a config and smaller scale steps

app_2009scape/src/main/java/net/kdt/pojavlaunch/SettingsMenu.java

@@ -1,20 +1,85 @@
 package net.kdt.pojavlaunch;
 
 import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
+import android.net.Uri;
 import android.os.Bundle;
+import android.os.FileUtils;
 import android.util.DisplayMetrics;
+import android.util.Log;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
+import android.widget.Button;
 import android.widget.CompoundButton;
 import android.widget.EditText;
 import android.widget.Switch;
+import android.widget.Toast;
 
 import androidx.annotation.Nullable;
 import androidx.preference.PreferenceManager;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
 public class SettingsMenu extends Activity {
+
+    private static final int FILE_SELECT_CODE = 0;
+
+    private void showFileChooser() {
+        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+        intent.setType("*/*");
+        intent.addCategory(Intent.CATEGORY_OPENABLE);
+
+        try {
+            startActivityForResult(
+                    Intent.createChooser(intent, "Select a File to Upload"),
+                    FILE_SELECT_CODE);
+        } catch (android.content.ActivityNotFoundException ex) {
+            // Potentially direct the user to the Market with a Dialog
+            Toast.makeText(this, "Please install a File Manager.",
+                    Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        switch (requestCode) {
+            case FILE_SELECT_CODE:
+                if (resultCode == RESULT_OK) {
+                    // Get the Uri of the selected file
+                    Uri uri = data.getData();
+                    Log.d("TAG", "File Uri: " + uri.toString());
+                    // Get the path
+                    Log.d("TAG", "File Path: " + uri.getPath());
+                    // Get the file instance
+                    File config = new File(getFilesDir(), "config.json");
+                    try {
+                        Log.d("TAG", "Starting copy: " + uri.getPath());
+                        InputStream inputStream = getContentResolver().openInputStream(uri);
+                        FileOutputStream fileOutputStream = new FileOutputStream(config);
+                        byte buf[]=new byte[1024];
+                        int len;
+                        while((len=inputStream.read(buf))>0) {
+                            fileOutputStream.write(buf,0,len);
+                        }
+                        fileOutputStream.close();
+                        inputStream.close();
+                        System.out.println("Wrote new config to Local");
+                    } catch (IOException e1) {
+                        Log.d("error", "Error with file " + e1);
+                    }
+                }
+                break;
+        }
+        super.onActivityResult(requestCode, resultCode, data);
+    }
+
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -28,6 +93,23 @@ public class SettingsMenu extends Activity {
         final EditText username = findViewById(R.id.username);
         final EditText password = findViewById(R.id.password);
         final Switch righthanded = findViewById(R.id.righthanded);
+        final Button loadConfig = findViewById(R.id.loadconfig);
+
+        loadConfig.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                switch(event.getAction()) {
+                    case MotionEvent.ACTION_DOWN:
+                        Log.i("Pressed","Button");
+                        showFileChooser();
+                        return true; // if you want to handle the touch event
+                    case MotionEvent.ACTION_UP:
+                        // RELEASED
+                        return true; // if you want to handle the touch event
+                }
+                return false;
+            }
+        });
 
 
         //For storing string value in sharedPreference