Android How to - Intent to call a number

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An application to call a telephone number.

Example

package com.java2s.app;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;
/*from www  .  j  a  va  2  s . c om*/
public class MainActivity extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        LinearLayout parentContainer = new LinearLayout(this);
        parentContainer.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,
                LayoutParams.MATCH_PARENT));
        parentContainer.setOrientation(LinearLayout.VERTICAL);

        Button button = new Button(this);
        parentContainer.addView(button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent i = new Intent(android.content.Intent.ACTION_DIAL, Uri.parse("tel:+651234567"));
                startActivity(i);
            }
        });

        setContentView(parentContainer);
    }
}

The code above generates the following result.

Note

You dial a specific number by passing in the telephone number in the data portion:

Intent i = new Intent(android.content.Intent.ACTION_DIAL,Uri.parse ("tel:+651234567"));
startActivity(i);

The dialer will display the number to be called. The user must still press the dial button to dial the number.

If you want to directly call the number without user intervention, change the action as follows:

Intent i = new Intent(android.content.Intent.ACTION_CALL,Uri.parse ("tel:+651234567"));
startActivity(i);

If you want your application to directly call the specified number, you need to add the android.permission.CALL_PHONE permission to your application.

To display the dialer without specifying any number, simply omit the data portion, like this:

Intent i = new Intent(android.content.Intent.ACTION_DIAL);
startActivity(i);

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