MainActivity.java

package com.baruberbagi.sharetext;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    EditText editText;
    Button btnShareText, btnSharePermanent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        editText = findViewById(R.id.edtText);
        btnShareText = findViewById(R.id.btnShareText);
        btnSharePermanent = findViewById(R.id.btnSharePermanent);

        btnShareText.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                shareText("Harus di isi");
            }
        });

        btnSharePermanent.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                sharePermanent();
            }
        });
    }

    private void shareText(String error){

        String text = editText.getText().toString();
        if (text.equals("")){
            editText.setError(error);
        }else {
            Intent intentShareText = new Intent(Intent.ACTION_SEND);
            intentShareText.setType("text/plaint");
            intentShareText.putExtra(Intent.EXTRA_TEXT,text);
            startActivity(Intent.createChooser(intentShareText, "Bagikan ke: "));
        }
    }

    private void sharePermanent(){
        Intent intentPermanent = new Intent(Intent.ACTION_SEND);
        intentPermanent.setType("text/plaint");
        intentPermanent.putExtra(Intent.EXTRA_TEXT, "ini adalah uji coba berbagi text");
        startActivity(Intent.createChooser(intentPermanent, "Bagikan ke: "));
    }
}