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how to select an item from a list , display the selected item in the editText then from the edit text display it in a toast

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i am creating a simple android application consist from 3 activities.

  • Main Activity
  • Second Activity
  • List Page

the first activity has a button that display the listPage using the intent after the user select an item from the list and click ok the system will transfer him to the second Activity that contain a edit box that the selected item will be display in it. and after the user click get back message button the system will transfer him to the MainActivity and display the selected item in a Toast .

can anyone help me to accomplish this tasks????

MainActivity.java

package com.devleb.intentmenudemoapp;

import android.R.color;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.text.Html;
import android.text.Spanned;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

    TextView txt1, txt2;
    EditText edittxt1, edittxt2;
    Button btn1, btn2, btn3, btn4;

    String msgStr, msgStr2;

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

        txt1 = (TextView) findViewById(R.id.txt1);

        txt2 = (TextView) findViewById(R.id.txt2);

        edittxt1 = (EditText) findViewById(R.id.edit1);

        edittxt2 = (EditText) findViewById(R.id.edit2);

        btn1 = (Button) findViewById(R.id.btn);

        btn1.setOnClickListener(this);

        btn2 = (Button) findViewById(R.id.btn2);

        btn2.setOnClickListener(this);

        btn3 = (Button) findViewById(R.id.btn3);

        btn3.setOnClickListener(this);

        btn4 = (Button) findViewById(R.id.btn4);

        btn4.setOnClickListener(this);

        registerForContextMenu(edittxt1);
        registerForContextMenu(edittxt2);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // TODO Auto-generated method stub

        msgStr = edittxt1.getText().toString();

        msgStr2 = edittxt2.getText().toString();

        switch (item.getItemId()) {
        case R.id.bold_item:

            edittxt1.setText(beautify(msgStr, "BOLD"));

            edittxt2.setText(beautify(msgStr2, "BOLD"));
            break;
        case R.id.italic_item:
            edittxt1.setText(beautify(msgStr, "ITALIC"));
            edittxt2.setText(beautify(msgStr2, "ITALIC"));
            break;

        case R.id.red_item:
            edittxt1.setTextColor(color.background_dark | Color.RED); // red
            edittxt2.setTextColor(color.background_dark | Color.RED); // red
            break;
        case R.id.blue_item:
            edittxt1.setTextColor(color.background_dark | Color.BLUE); // blue
            edittxt2.setTextColor(color.background_dark | Color.BLUE); // blue
            break;
        case R.id.yellow_item:
            edittxt1.setTextColor(color.background_dark | Color.YELLOW); // yellow
            edittxt2.setTextColor(color.background_dark | Color.YELLOW); // yellow
            break;

        default:
            break;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        // TODO Auto-generated method stub
        AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
                .getMenuInfo();
        msgStr = edittxt1.getText().toString();
        msgStr2 = edittxt2.getText().toString();

        switch (item.getItemId()) {
        case R.id.bold_item:
            edittxt1.setText(beautify(msgStr, "BOLD"));
            edittxt2.setText(beautify(msgStr2, "BOLD"));
            break;
        case R.id.italic_item:
            edittxt1.setText(beautify(msgStr, "ITALIC"));
            edittxt2.setText(beautify(msgStr2, "ITALIC"));

            break;
        case R.id.red_item:
            edittxt1.setTextColor(color.background_dark | Color.RED); // red
            edittxt2.setTextColor(color.background_dark | Color.RED); // red
            break;
        case R.id.blue_item:
            edittxt1.setTextColor(color.background_dark | Color.BLUE); // blue
            edittxt2.setTextColor(color.background_dark | Color.BLUE); // blue
            break;
        case R.id.yellow_item:
            edittxt1.setTextColor(color.background_dark | Color.YELLOW); // yellow
            edittxt2.setTextColor(color.background_dark | Color.YELLOW); // yellow
            break;

        default:
            break;
        }

        return super.onContextItemSelected(item);
    }

    private CharSequence beautify(String originalText, String selectedStyle) {
        // TODO Auto-generated method stub
        Spanned answer = null;
        if (selectedStyle.equals("BOLD"))
            answer = Html.fromHtml("<b>" + originalText + "</b>");
        else if (selectedStyle.equals("ITALIC"))
            answer = Html.fromHtml("<i>" + originalText + "</i>");
        else if (selectedStyle.equals("NORMAL"))
            answer = Html.fromHtml("<normal>" + originalText + "</normal>");

        return answer;
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v,
            ContextMenuInfo menuInfo) {
        // TODO Auto-generated method stub
        getMenuInflater().inflate(R.menu.main, menu);
        super.onCreateContextMenu(menu, v, menuInfo);
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub

        String value;

        switch (v.getId()) {
        case R.id.btn:

            value = edittxt1.getText().toString();
            txt2.setText(value);

            break;

        case R.id.btn2:
        //  value = edittxt1.getText().toString();
            Intent i = new Intent(this, ListPage.class);
            //i.putExtra("msgFromFirstActivity", value);
            startActivity(i);
            break;
        case R.id.btn3:
            Intent ii = new Intent();
            ii.setType("image/pictures/*");
            ii.setAction(Intent.ACTION_GET_CONTENT);
            startActivity(ii);
            break;
        case R.id.btn4:
            // get back message from second activity
            Intent iii = new Intent(this, SecondActivity.class);
            startActivityForResult(iii, 1);

        default:
            break;
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub

        if (requestCode == 1) {
            if (null != data) {
                String returnMSG = data.getStringExtra("MESSAGE");

                Toast.makeText(this, returnMSG, Toast.LENGTH_SHORT).show();
            } else
                Toast.makeText(this, "Error!!", Toast.LENGTH_SHORT).show();

        }
        super.onActivityResult(requestCode, resultCode, data);
    }

}

SecondActivity.java

/*get back the result from the list page and display it in the edit
 text box then after clicking show the result in the first activity as
 toast
 */

package com.devleb.intentmenudemoapp;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

public class SecondActivity extends Activity {

    TextView txt;
    EditText edittxt;
    String result;
    Button btn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);
/*
        Intent iList = new Intent(this, SecondActivity.class);
        startActivityForResult(iList, 1);
    */
        edittxt = (EditText) findViewById(R.id.edit_txt);
        btn = (Button) findViewById(R.id.btn);
        btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                result = edittxt.getText().toString();
                Intent i = new Intent();
                i.putExtra("MESSAGE", result);

                setResult(1, i);

                finish();
            }
        });
    }

    /*@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub
        if (requestCode == 1) {
            if (null != data) {
                String returnMSG = data
                        .getStringExtra("MessageFromsecondActivity");

                // Toast.makeText(this, returnMSG, Toast.LENGTH_SHORT).show();
                edittxt.setText(returnMSG);
            } else
                Toast.makeText(this, "Error!!", Toast.LENGTH_SHORT).show();

        }

        super.onActivityResult(requestCode, resultCode, data);
    }

*/
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.second, menu);
        return true;
    }

}

ListPage.java

package com.devleb.intentmenudemoapp;

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

public class ListPage extends ListActivity {

    TextView txt;
    private static final String[] items = { "item1", "item2", "item3", "item4",
            "item5", "item6", "item7", "item8", "item9" };
    Button btn;
    String result;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_list);
        setListAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, items));

        txt = (TextView) findViewById(R.id.txt_list);

        btn = (Button) findViewById(R.id.btn_list);
        btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
/*
                result = txt.getText().toString();
                Intent i = new Intent();
                i.putExtra("MessageFromsecondActivity", result);
                setResult(1, i);

                finish();
*/
            }
        });
    }

    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        // TODO Auto-generated method stub

        txt.setText(items[position]);
        super.onListItemClick(l, v, position, id);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.list, menu);
        return true;
    }

}

until now this what i did from here how to continue or what i need to add and change to make my tasks

android android-intent listactivity
Original Q&A
2

There are 2 answers

2
Looking Forward On

What here you can do is, To pass data from first activity to second activity

Intent in = new Intent(Youractivity.this, secondactivity.class);
in.putExtra("value", valuetopass);
startActivity(in);

Now, get data in second activity

Intent in = getIntent();
String valuetoset = in.getStringExtra("value");

And then set this value to edittext

youredittext.setText(valuetoset);
0
Hariharan On

Try this..

ListPage.java

@Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        // TODO Auto-generated method stub        
        String val = ((TextView) v).getText().toString().trim();
        txt.setText(items[position]);          
        Intent i = new Intent(ListPage.this, SecondActivity.class);
        i.putExtra("value", val);
        startActivity(in);  
    }

SecondActivity.java

       Intent i = getIntent();
       String val = "";

       if(i.hasExtra("value"))
             val = i.getStringExtra("value");

    edittxt = (EditText) findViewById(R.id.edit_txt);
    edittxt.setText(val);
    btn = (Button) findViewById(R.id.btn);
    btn.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            result = edittxt.getText().toString();
            Intent i = new Intent();
            i.putExtra("MESSAGE", result);
            startActivity(in); 
        }
    });

MainActivity.java

    Intent i = getIntent();
       String value = "";

       if(i.hasExtra("MESSAGE")){
             value = i.getStringExtra("MESSAGE");
             Toast.makeText(getBaseContext(), value, Toast.LENGTH_SHORT).show();
       }

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