Simple Code Editor Project for Android Studio Java | How to make a code editor and text editor and maker in Android studio

Hello Developers, in this Article you will get the simple text editor project for Android Studio. With the the help of this project users can easily make, edit a code file and text files. You will get the project source below. If you need any project on your intersted topic then please contact us. We will make that project as soon as possible. So, Without wasting time lets start.

How to implement this project in our project?

You can implement this easily. Just make files by the given name and copy codes tyo that files. Make sure you have downloaded the drawable images before implemented this project source.

main.xml

<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:layout_width="match_parent"
	android:layout_height="match_parent"
	android:orientation="vertical">
	<LinearLayout
		android:id="@+id/linear1"
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:background="#FFFFFF"
		android:gravity="center_horizontal|center_vertical"
		android:orientation="vertical">
		<ImageView
			android:id="@+id/imageview1"
			android:layout_width="100dp"
			android:layout_height="100dp"
			android:src="@drawable/icon"
			android:scaleType="fitCenter" />
		<TextView
			android:id="@+id/textview1"
			android:layout_width="wrap_content"
			android:layout_height="wrap_content"
			android:padding="8dp"
			android:text="Code Editor"
			android:textSize="25sp"
			android:textStyle="bold"
			android:textColor="#3F51B5" />
	</LinearLayout>
</LinearLayout>

editor.xml

<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:layout_width="match_parent"
	android:layout_height="match_parent"
	android:orientation="vertical">
	<TextView
		android:id="@+id/regex11"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="\\b(Uzuakoli|Amoji|Bright|Ndudirim|Ezinwanne|Lightworker|Isuochi|Abia|Ngodo)\\b"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex1"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="\\b(out|print|println|valueOf|toString|concat|equals|for|while|switch|getText"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex3"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="\\b(public|private|protected|void|switch|case|class|import|package|extends|Activity|TextView|EditText|LinearLayout|CharSequence|String|int|onCreate|ArrayList|float|if|else|static|Nigeria|Intent|Button|SharedPreferences"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex4"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="|abstract|assert|boolean|break|byte|case|catch|char|class|const|continue|default|do|double|else|enum|extends|final|finally|float|for|goto|if|implements|import|instanceof|interface|long|native|new|package|private|protected|"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex5"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="public|return|short|static|strictfp|super|switch|synchronized|this|throw|throws|transient|try|void|volatile|while|true|false|null)\\b"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex6"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="\\b([0-9]+)\\b"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex7"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="(\\w+)(\\()+"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex8"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="\\\@\\s*(\\w+)"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex9"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="\&quot;(.\?)\&quot;|'(.\?)'"
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex10"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="/\\(\?:.|[\\n\\r])\?\\/|//."
		android:textSize="12sp"
		android:textColor="#000000" />
	<TextView
		android:id="@+id/regex2"
		android:layout_width="0dp"
		android:layout_height="0dp"
		android:padding="8dp"
		android:text="|println|printf|print|out|parseInt|round|sqrt|charAt|compareTo|compareToIgnoreCase|concat|contains|contentEquals|equals|length|toLowerCase|trim|toUpperCase|toString|valueOf|substring|startsWith|split|replace|replaceAll|lastIndexOf|size)\\b"
		android:textSize="12sp"
		android:textColor="#000000" />
	<LinearLayout
		android:id="@+id/linear2"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:padding="8dp"
		android:background="#3F51B5"
		android:gravity="center_vertical"
		android:orientation="horizontal">
		<ImageView
			android:id="@+id/save"
			android:layout_width="38dp"
			android:layout_height="38dp"
			android:padding="8dp"
			android:src="@drawable/ic_save_white"
			android:scaleType="fitCenter" />
		<ImageView
			android:id="@+id/copy"
			android:layout_width="38dp"
			android:layout_height="38dp"
			android:padding="8dp"
			android:src="@drawable/ic_content_copy_white"
			android:scaleType="fitCenter"
			android:layout_weight="1" />
		<ImageView
			android:id="@+id/cut"
			android:layout_width="38dp"
			android:layout_height="38dp"
			android:padding="8dp"
			android:src="@drawable/ic_content_cut_white"
			android:scaleType="fitCenter" />
		<ImageView
			android:id="@+id/export"
			android:layout_width="38dp"
			android:layout_height="38dp"
			android:padding="8dp"
			android:src="@drawable/ic_sd_storage_white"
			android:scaleType="fitCenter"
			android:layout_weight="1" />
		<ImageView
			android:id="@+id/edit"
			android:layout_width="38dp"
			android:layout_height="38dp"
			android:padding="8dp"
			android:src="@drawable/ic_create_white"
			android:scaleType="fitCenter" />
	</LinearLayout>
	<ScrollView
		android:id="@+id/vscroll1"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:background="#FFFFFF"
		android:layout_weight="1">
		<EditText
			android:id="@+id/edittext1"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:paddingLeft="12dp"
			android:paddingTop="8dp"
			android:paddingRight="12dp"
			android:paddingBottom="8dp"
			android:background="@android:color/transparent"
			android:gravity="top"
			android:textSize="14sp"
			android:textColor="#212121"
			android:textColorHint="#607D8B" />
	</ScrollView>
</LinearLayout>

export_cus.xml

<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:layout_width="match_parent"
	android:layout_height="match_parent"
	android:orientation="vertical">
	<LinearLayout
		android:id="@+id/linear1"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:background="#FFFFFF"
		android:orientation="vertical">
		<LinearLayout
			android:id="@+id/linear2"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:padding="8dp"
			android:orientation="horizontal">
			<TextView
				android:id="@+id/textview1"
				android:focusable="false"
				android:layout_width="match_parent"
				android:layout_height="wrap_content"
				android:paddingLeft="12dp"
				android:paddingTop="8dp"
				android:paddingRight="12dp"
				android:paddingBottom="8dp"
				android:text="Export"
				android:textSize="20sp"
				android:textColor="#000000" />
		</LinearLayout>
		<LinearLayout
			android:id="@+id/linear3"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:paddingLeft="12dp"
			android:paddingRight="12dp"
			android:paddingBottom="8dp"
			android:orientation="vertical">
			<TextView
				android:id="@+id/textview2"
				android:focusable="false"
				android:layout_width="match_parent"
				android:layout_height="wrap_content"
				android:paddingLeft="8dp"
				android:paddingRight="8dp"
				android:text="Enter Name"
				android:textSize="12sp"
				android:textColor="#3F51B5" />
			<EditText
				android:id="@+id/edittext1"
				android:focusable="false"
				android:layout_width="match_parent"
				android:layout_height="40dp"
				android:paddingLeft="8dp"
				android:paddingTop="8dp"
				android:paddingRight="8dp"
				android:textSize="16sp"
				android:textColor="#000000"
				android:textColorHint="#607D8B"
				android:singleLine="true" />
		</LinearLayout>
		<LinearLayout
			android:id="@+id/linear5"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:paddingBottom="10dp"
			android:gravity="center_vertical"
			android:orientation="horizontal">
			<TextView
				android:id="@+id/cbtn"
				android:focusable="false"
				android:layout_width="match_parent"
				android:layout_height="wrap_content"
				android:padding="8dp"
				android:gravity="center_horizontal"
				android:text="CANCEL"
				android:textSize="14sp"
				android:textColor="#3F51B5"
				android:layout_weight="1" />
			<TextView
				android:id="@+id/xmlbtn"
				android:focusable="false"
				android:layout_width="match_parent"
				android:layout_height="wrap_content"
				android:padding="8dp"
				android:gravity="center_horizontal"
				android:text="XML"
				android:textSize="14sp"
				android:textColor="#3F51B5"
				android:layout_weight="1" />
			<TextView
				android:id="@+id/javabtn"
				android:focusable="false"
				android:layout_width="match_parent"
				android:layout_height="wrap_content"
				android:padding="8dp"
				android:gravity="center_horizontal"
				android:text="TEXT"
				android:textSize="14sp"
				android:textColor="#3F51B5"
				android:layout_weight="1" />
		</LinearLayout>
	</LinearLayout>
</LinearLayout>

MainActivity.java

package com.my.newproject127;

import androidx.appcompat.app.AppCompatActivity;
import androidx.annotation.*;
import android.app.*;
import android.os.*;
import android.view.*;
import android.view.View.*;
import android.widget.*;
import android.content.*;
import android.content.res.*;
import android.graphics.*;
import android.graphics.drawable.*;
import android.media.*;
import android.net.*;
import android.text.*;
import android.text.style.*;
import android.util.*;
import android.webkit.*;
import android.animation.*;
import android.view.animation.*;
import java.io.*;
import java.util.*;
import java.util.regex.*;
import java.text.*;
import org.json.*;
import android.widget.LinearLayout;
import android.widget.ImageView;
import android.widget.TextView;
import android.content.Intent;
import android.net.Uri;
import java.util.Timer;
import java.util.TimerTask;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.DialogFragment;
import androidx.core.content.ContextCompat;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.pm.PackageManager;

public class MainActivity extends AppCompatActivity {
	
	private Timer _timer = new Timer();
	
	private LinearLayout linear1;
	private ImageView imageview1;
	private TextView textview1;
	
	private Intent intent = new Intent();
	private TimerTask timer;
	
	@Override
	protected void onCreate(Bundle _savedInstanceState) {
		super.onCreate(_savedInstanceState);
		setContentView(R.layout.main);
		initialize(_savedInstanceState);
		
		if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED
		|| ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED) {
			ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1000);
		} else {
			initializeLogic();
		}
	}
	
	@Override
	public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
		super.onRequestPermissionsResult(requestCode, permissions, grantResults);
		if (requestCode == 1000) {
			initializeLogic();
		}
	}
	
	private void initialize(Bundle _savedInstanceState) {
		linear1 = findViewById(R.id.linear1);
		imageview1 = findViewById(R.id.imageview1);
		textview1 = findViewById(R.id.textview1);
	}
	
	private void initializeLogic() {
		timer = new TimerTask() {
			@Override
			public void run() {
				runOnUiThread(new Runnable() {
					@Override
					public void run() {
						intent.setClass(getApplicationContext(), EditorActivity.class);
						intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
						startActivity(intent);
						finish();
					}
				});
			}
		};
		_timer.schedule(timer, (int)(2000));
		
	}
	
	
	@Deprecated
	public void showMessage(String _s) {
		Toast.makeText(getApplicationContext(), _s, Toast.LENGTH_SHORT).show();
	}
	
	@Deprecated
	public int getLocationX(View _v) {
		int _location[] = new int[2];
		_v.getLocationInWindow(_location);
		return _location[0];
	}
	
	@Deprecated
	public int getLocationY(View _v) {
		int _location[] = new int[2];
		_v.getLocationInWindow(_location);
		return _location[1];
	}
	
	@Deprecated
	public int getRandom(int _min, int _max) {
		Random random = new Random();
		return random.nextInt(_max - _min + 1) + _min;
	}
	
	@Deprecated
	public ArrayList<Double> getCheckedItemPositionsToArray(ListView _list) {
		ArrayList<Double> _result = new ArrayList<Double>();
		SparseBooleanArray _arr = _list.getCheckedItemPositions();
		for (int _iIdx = 0; _iIdx < _arr.size(); _iIdx++) {
			if (_arr.valueAt(_iIdx))
			_result.add((double)_arr.keyAt(_iIdx));
		}
		return _result;
	}
	
	@Deprecated
	public float getDip(int _input) {
		return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, _input, getResources().getDisplayMetrics());
	}
	
	@Deprecated
	public int getDisplayWidthPixels() {
		return getResources().getDisplayMetrics().widthPixels;
	}
	
	@Deprecated
	public int getDisplayHeightPixels() {
		return getResources().getDisplayMetrics().heightPixels;
	}
}
 

EditorActivity.java

package com.my.newproject127;

import androidx.appcompat.app.AppCompatActivity;
import androidx.annotation.*;
import android.app.*;
import android.os.*;
import android.view.*;
import android.view.View.*;
import android.widget.*;
import android.content.*;
import android.content.res.*;
import android.graphics.*;
import android.graphics.drawable.*;
import android.media.*;
import android.net.*;
import android.text.*;
import android.text.style.*;
import android.util.*;
import android.webkit.*;
import android.animation.*;
import android.view.animation.*;
import java.io.*;
import java.util.*;
import java.util.regex.*;
import java.text.*;
import org.json.*;
import android.widget.TextView;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.ImageView;
import android.widget.EditText;
import android.app.Activity;
import android.content.SharedPreferences;
import android.content.Intent;
import android.content.ClipData;
import android.net.Uri;
import android.view.View;
import android.text.Editable;
import android.text.TextWatcher;
import android.content.ClipboardManager;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.DialogFragment;
import androidx.core.content.ContextCompat;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.pm.PackageManager;

public class EditorActivity extends AppCompatActivity {
	
	public final int REQ_CD_PICK_FILE = 101;
	
	private String secondaryColor = "";
	private String primaryColor = "";
	private String numbersColor = "";
	private String quotesColor = "";
	private String commentsColor = "";
	private String charColor = "";
	private String name = "";
	private String prevColor = "";
	private String charSeq = "";
	
	private TextView regex11;
	private TextView regex1;
	private TextView regex3;
	private TextView regex4;
	private TextView regex5;
	private TextView regex6;
	private TextView regex7;
	private TextView regex8;
	private TextView regex9;
	private TextView regex10;
	private TextView regex2;
	private LinearLayout linear2;
	private ScrollView vscroll1;
	private ImageView save;
	private ImageView copy;
	private ImageView cut;
	private ImageView export;
	private ImageView edit;
	private EditText edittext1;
	
	private SharedPreferences save_data;
	private Intent pick_file = new Intent(Intent.ACTION_GET_CONTENT);
	private Intent intent = new Intent();
	
	@Override
	protected void onCreate(Bundle _savedInstanceState) {
		super.onCreate(_savedInstanceState);
		setContentView(R.layout.editor);
		initialize(_savedInstanceState);
		
		if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED
		|| ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED) {
			ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1000);
		} else {
			initializeLogic();
		}
	}
	
	@Override
	public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
		super.onRequestPermissionsResult(requestCode, permissions, grantResults);
		if (requestCode == 1000) {
			initializeLogic();
		}
	}
	
	private void initialize(Bundle _savedInstanceState) {
		regex11 = findViewById(R.id.regex11);
		regex1 = findViewById(R.id.regex1);
		regex3 = findViewById(R.id.regex3);
		regex4 = findViewById(R.id.regex4);
		regex5 = findViewById(R.id.regex5);
		regex6 = findViewById(R.id.regex6);
		regex7 = findViewById(R.id.regex7);
		regex8 = findViewById(R.id.regex8);
		regex9 = findViewById(R.id.regex9);
		regex10 = findViewById(R.id.regex10);
		regex2 = findViewById(R.id.regex2);
		linear2 = findViewById(R.id.linear2);
		vscroll1 = findViewById(R.id.vscroll1);
		save = findViewById(R.id.save);
		copy = findViewById(R.id.copy);
		cut = findViewById(R.id.cut);
		export = findViewById(R.id.export);
		edit = findViewById(R.id.edit);
		edittext1 = findViewById(R.id.edittext1);
		save_data = getSharedPreferences("save_data", Activity.MODE_PRIVATE);
		pick_file.setType("/");
		pick_file.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
		
		save.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View _view) {
				_Ripple_Drawable(save, "#5c6bc0");
				save_data.edit().putString("save_data", edittext1.getText().toString()).commit();
				SketchwareUtil.showMessage(getApplicationContext(), "Saved");
			}
		});
		
		copy.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View _view) {
				_Ripple_Drawable(copy, "#5c6bc0");
				if (edittext1.getText().toString().equals("")) {
					SketchwareUtil.showMessage(getApplicationContext(), "Empty");
				}
				else {
					((ClipboardManager) getSystemService(getApplicationContext().CLIPBOARD_SERVICE)).setPrimaryClip(ClipData.newPlainText("clipboard", edittext1.getText().toString()));
					SketchwareUtil.showMessage(getApplicationContext(), "Copied");
				}
			}
		});
		
		cut.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View _view) {
				_Ripple_Drawable(cut, "#5c6bc0");
				if (edittext1.getText().toString().equals("")) {
					SketchwareUtil.showMessage(getApplicationContext(), "Empty");
				}
				else {
					((ClipboardManager) getSystemService(getApplicationContext().CLIPBOARD_SERVICE)).setPrimaryClip(ClipData.newPlainText("clipboard", edittext1.getText().toString()));
					edittext1.setText("");
					SketchwareUtil.showMessage(getApplicationContext(), "Cut");
				}
			}
		});
		
		export.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View _view) {
				_Ripple_Drawable(export, "#5c6bc0");
				if (edittext1.getText().toString().equals("")) {
					SketchwareUtil.showMessage(getApplicationContext(), "Empty");
				}
				else {
					_exportbtn();
				}
			}
		});
		
		edit.setOnClickListener(new View.OnClickListener() {
			@Override
			public void onClick(View _view) {
				_Ripple_Drawable(edit, "#5c6bc0");
				if (edittext1.isEnabled()) {
					edittext1.setEnabled(false);
					edit.setImageResource(R.drawable.ic_create_white);
				}
				else {
					edittext1.setEnabled(true);
					edit.setImageResource(R.drawable.ic_check_white);
				}
			}
		});
		
		edittext1.addTextChangedListener(new TextWatcher() {
			@Override
			public void onTextChanged(CharSequence _param1, int _param2, int _param3, int _param4) {
				final String _charSeq = _param1.toString();
				
			}
			
			@Override
			public void beforeTextChanged(CharSequence _param1, int _param2, int _param3, int _param4) {
				
			}
			
			@Override
			public void afterTextChanged(Editable _param1) {
				
			}
		});
	}
	
	private void initializeLogic() {
		setTitle("Code Editor");
		_setHighlighter(edittext1);
		if (!save_data.getString("save_data", "").equals("")) {
			edittext1.setText(save_data.getString("save_data", ""));
		}
		_Elevation(linear2, 5);
		
		vscroll1.setVerticalScrollBarEnabled(false);
		if (edittext1.getText().toString().equals("")) {
			edittext1.setEnabled(true);
			edit.setImageResource(R.drawable.ic_check_white);
		}
		else {
			edittext1.setEnabled(false);
			edit.setImageResource(R.drawable.ic_create_white);
		}
		overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
		_MENU();
		getSupportActionBar().setDisplayHomeAsUpEnabled(false); 
	}
	
	@Override
	protected void onActivityResult(int _requestCode, int _resultCode, Intent _data) {
		super.onActivityResult(_requestCode, _resultCode, _data);
		
		switch (_requestCode) {
			case REQ_CD_PICK_FILE:
			if (_resultCode == Activity.RESULT_OK) {
				ArrayList<String> _filePath = new ArrayList<>();
				if (_data != null) {
					if (_data.getClipData() != null) {
						for (int _index = 0; _index < _data.getClipData().getItemCount(); _index++) {
							ClipData.Item _item = _data.getClipData().getItemAt(_index);
							_filePath.add(FileUtil.convertUriToFilePath(getApplicationContext(), _item.getUri()));
						}
					}
					else {
						_filePath.add(FileUtil.convertUriToFilePath(getApplicationContext(), _data.getData()));
					}
				}
				if (_filePath.get((int)(0)).endsWith(".xml")) {
					edittext1.setText(FileUtil.readFile(_filePath.get((int)(0))));
				}
				else {
					if (_filePath.get((int)(0)).endsWith(".java")) {
						edittext1.setText(FileUtil.readFile(_filePath.get((int)(0))));
					}
					else {
						if (_filePath.get((int)(0)).endsWith(".txt")) {
							edittext1.setText(FileUtil.readFile(_filePath.get((int)(0))));
						}
						else {
							SketchwareUtil.showMessage(getApplicationContext(), "Invalid file");
						}
					}
				}
			}
			else {
				
			}
			break;
			default:
			break;
		}
	}
	
	public void _setHighlighter(final TextView _view) {
		secondaryColor = "#678cb1";
		primaryColor = "#4caf50";
		numbersColor = "#f6c921";
		quotesColor = "#ff1744";
		commentsColor = "#9e9e9e";
		charColor = "#ff5722";
		_view.addTextChangedListener(new TextWatcher() { ColorScheme keywords1 = new ColorScheme(java.util.regex.Pattern.compile(regex1.getText().toString().concat(regex2.getText().toString())), Color.parseColor(secondaryColor));
			
			ColorScheme keywords2 = new ColorScheme(java.util.regex.Pattern.compile(regex3.getText().toString().concat(regex4.getText().toString().concat(regex5.getText().toString()))), Color.parseColor(primaryColor));
			
			ColorScheme keywords3 = new ColorScheme(java.util.regex.Pattern.compile(regex6.getText().toString()), Color.parseColor(numbersColor));
			
			ColorScheme keywords4 = new ColorScheme(java.util.regex.Pattern.compile(regex7.getText().toString()), Color.parseColor(secondaryColor));
			
			ColorScheme keywords5 = new ColorScheme(java.util.regex.Pattern.compile(regex9.getText().toString()), Color.parseColor(quotesColor));
			
			ColorScheme keywords6 = new ColorScheme(java.util.regex.Pattern.compile(regex10.getText().toString()), Color.parseColor(commentsColor));
			
			ColorScheme keywords7 = new ColorScheme(java.util.regex.Pattern.compile(regex8.getText().toString()), Color.parseColor(numbersColor));
			
			
			ColorScheme keywords8 = new ColorScheme(java.util.regex.Pattern.compile(regex11.getText().toString()), Color.parseColor(charColor));
			
			final ColorScheme[] schemes = {keywords1, keywords2, keywords3, keywords4, keywords5, keywords6, keywords7, keywords8}; @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { removeSpans(s, android.text.style.ForegroundColorSpan.class); for(ColorScheme scheme : schemes) { for(java.util.regex.Matcher m = scheme.pattern.matcher(s);
					
					m.find();) { if (scheme == keywords4) { s.setSpan(new android.text.style.ForegroundColorSpan(scheme.color), m.start(), m.end()-1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
						} 
						else { s.setSpan(new android.text.style.ForegroundColorSpan(scheme.color), m.start(), m.end(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE); } } } } void removeSpans(Editable e, Class type) { android.text.style.CharacterStyle[] spans = e.getSpans(0, e.length(), type); for (android.text.style.CharacterStyle span : spans) { e.removeSpan(span); } } class ColorScheme { final java.util.regex.Pattern pattern; final int color; ColorScheme(java.util.regex.Pattern pattern, int color) { this.pattern = pattern; this.color = color; } } });
	}
	
	
	public void _MENU() {
	}
	@Override
	public boolean onCreateOptionsMenu (Menu menu){
		menu.add(0, 0, 0, "Color").setIcon(R.drawable.color).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
		menu.add(0, 1, 1, "Attach").setIcon(R.drawable.folder).setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
		
		return true;
	}
	@Override
	public boolean onOptionsItemSelected(MenuItem item){
		switch (item.getItemId()){
			case 0:
			_customHex();
			break;
			case 1:
			startActivityForResult(pick_file, REQ_CD_PICK_FILE);
			break;
		}
		return super.onOptionsItemSelected(item);
	}
	
	
	public void _Ripple_Drawable(final View _view, final String _c) {
		android.content.res.ColorStateList clr = new android.content.res.ColorStateList(new int[][]{new int[]{}},new int[]{Color.parseColor(_c)}); android.graphics.drawable.RippleDrawable ripdr = new android.graphics.drawable.RippleDrawable(clr, null, null); _view.setBackground(ripdr);
	}
	
	
	public void _exportbtn() {
		AlertDialog.Builder alert = new AlertDialog.Builder(EditorActivity.this);
		View dialog1 = getLayoutInflater().inflate(R.layout.export_cus,null); alert.setView(dialog1);
		final AlertDialog dialog = alert.create(); dialog.setCanceledOnTouchOutside(true);
		dialog.setCancelable(true);
		dialog.show();
		final EditText text = (EditText) dialog1.findViewById(R.id.edittext1);
		
		TextView javabtn = (TextView)dialog1.findViewById(R.id.javabtn);
		
		TextView xmlbtn = (TextView)dialog1.findViewById(R.id.xmlbtn);
		
		TextView cbtn = (TextView)dialog1.findViewById(R.id.cbtn);
		
		text.setFocusableInTouchMode(true);
		
		cbtn.setOnClickListener(new OnClickListener() { public void onClick(View view) {
				dialog.dismiss();
			} });
		javabtn.setOnClickListener(new OnClickListener() { public void onClick(View view) {
				name = text.getText().toString();
				if (name.equals("")) {
					text.setError("Name empty");
				}
				else {
					FileUtil.makeDir(FileUtil.getExternalStorageDir().concat("/Code Editor/exported/"));
					FileUtil.writeFile(FileUtil.getExternalStorageDir().concat("/Code Editor/exported/".concat(name.trim().concat(".txt"))), edittext1.getText().toString());
					dialog.dismiss();
					SketchwareUtil.showMessage(getApplicationContext(), "Exported to - Code Editor/exported/".concat(name.concat(".txt")));
				}
			} });
		xmlbtn.setOnClickListener(new OnClickListener() { public void onClick(View view) {
				name = text.getText().toString();
				if (name.equals("")) {
					text.setError("Name empty");
				}
				else {
					FileUtil.makeDir(FileUtil.getExternalStorageDir().concat("/Code Editor/exported/"));
					FileUtil.writeFile(FileUtil.getExternalStorageDir().concat("/Code Editor/exported/".concat(name.trim().concat(".xml"))), edittext1.getText().toString());
					dialog.dismiss();
					SketchwareUtil.showMessage(getApplicationContext(), "Exported to - Code Editor/exported/".concat(name.concat(".xml")));
				}
			} });
	}
	
	
	public void _Elevation(final View _view, final double _number) {
		
		_view.setElevation((int)_number);
	}
	
	
	public void _customHex() {
		prevColor = "#ffffff";
		final AlertDialog cstmhx = new AlertDialog.Builder(EditorActivity.this).create();
		cstmhx.setTitle("Color Pad");
		final LinearLayout layout = new LinearLayout(EditorActivity.this);
		layout.setOrientation(LinearLayout.HORIZONTAL);
		layout.setGravity(Gravity.CENTER_HORIZONTAL);
		layout.setPadding(16,0,16,32);
		
		final TextView tvw1 = new TextView(EditorActivity.this); tvw1.setText("#"); tvw1.setTextSize(16);
		tvw1.setTextColor(Color.parseColor("#3f51b5"));
		layout.addView(tvw1);
		
		final EditText edittxt = new EditText(EditorActivity.this);
		edittxt.setLayoutParams(new LinearLayout.LayoutParams(android.widget.LinearLayout.LayoutParams.WRAP_CONTENT, android.widget.LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f));
		layout.addView(edittxt);
		
		final LinearLayout preview = new LinearLayout(EditorActivity.this);
		preview.setPadding(8,8,8,8);
		preview.setLayoutParams(new LinearLayout.LayoutParams(80,android.widget.LinearLayout.LayoutParams.MATCH_PARENT));
		layout.addView(preview);
		
		cstmhx.setView(layout);
		cstmhx.show();
		 
		edittxt.addTextChangedListener(new TextWatcher() {
			@Override
			public void onTextChanged(CharSequence _param1, int _param2, int _param3, int _param4) {
				charSeq = _param1.toString();
				
				if (charSeq.length() > 8) {
					edittxt.setTextColor(Color.parseColor("#FF0000"));
					edittxt.setError("max 8 characters");
					preview.setVisibility(View.INVISIBLE);
				}
				else {
					if (!charSeq.equals("")) {
						if (charSeq.matches("-?[0-9a-fA-F]+")) {
							prevColor = "FFFFFFFF".concat(charSeq);
							prevColor = prevColor.substring((int)(prevColor.length() - 8), (int)(prevColor.length()));
							prevColor = "#".concat(prevColor);
							edittxt.setTextColor(Color.parseColor("#000000"));
							preview.setVisibility(View.VISIBLE);
							preview.setBackgroundColor(Color.parseColor(prevColor));
						} else {
							edittxt.setError("Invalid format");
							preview.setVisibility(View.INVISIBLE);
						}
					}
				}
			}
			 @Override 
			public void beforeTextChanged(CharSequence _param1, int _param2, int _param3, int _param4) {}
			
			@Override 
			public void afterTextChanged(Editable _param1) {}
		});
	}
	
	
	@Deprecated
	public void showMessage(String _s) {
		Toast.makeText(getApplicationContext(), _s, Toast.LENGTH_SHORT).show();
	}
	
	@Deprecated
	public int getLocationX(View _v) {
		int _location[] = new int[2];
		_v.getLocationInWindow(_location);
		return _location[0];
	}
	
	@Deprecated
	public int getLocationY(View _v) {
		int _location[] = new int[2];
		_v.getLocationInWindow(_location);
		return _location[1];
	}
	
	@Deprecated
	public int getRandom(int _min, int _max) {
		Random random = new Random();
		return random.nextInt(_max - _min + 1) + _min;
	}
	
	@Deprecated
	public ArrayList<Double> getCheckedItemPositionsToArray(ListView _list) {
		ArrayList<Double> _result = new ArrayList<Double>();
		SparseBooleanArray _arr = _list.getCheckedItemPositions();
		for (int _iIdx = 0; _iIdx < _arr.size(); _iIdx++) {
			if (_arr.valueAt(_iIdx))
			_result.add((double)_arr.keyAt(_iIdx));
		}
		return _result;
	}
	
	@Deprecated
	public float getDip(int _input) {
		return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, _input, getResources().getDisplayMetrics());
	}
	
	@Deprecated
	public int getDisplayWidthPixels() {
		return getResources().getDisplayMetrics().widthPixels;
	}
	
	@Deprecated
	public int getDisplayHeightPixels() {
		return getResources().getDisplayMetrics().heightPixels;
	}
}

Before adding below code to AndroidMAnifest.xml file you must declare MainActivity and permissions.

AndroidManifest.xml

	<activity
			android:name=".EditorActivity"
			android:configChanges="orientation|screenSize|keyboardHidden|smallestScreenSize|screenLayout"
			android:hardwareAccelerated="true"
			android:supportsPictureInPicture="true"
			android:theme="@style/AppTheme.FullScreen"
			android:screenOrientation="portrait" />

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