如何在Android中实现图片按钮通话（无电话号码输入editText）？

Question

I'm new new to java programming and this website. it's my 2nd program but I'm stuck with calling, sending SMS, emailing, showing location using google map. I'm using imageButtons for all of these. User doesn't need to type any numbers or addresses(not using editText to get user input) For example, it makes calls when user click on Phone icon. However, I still need a user input(the actual msg not the destination number or email address) for sending sms and email. I can do if I use editText but can't do without using editText. How do I do this?

My wrong code:

public class PhoneActivity extends Activity {


    ImageButton btnphonecall;
    String phoneNumber = "091111111";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.activity_phone);


        btnphonecall=(ImageButton)findViewById(R.id.imageButton1);

        btnphonecall.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub

                Intent i = new Intent(Intent.ACTION_CALL);
                                i.setData(Uri.parse("091111111"));
                                PhoneActivity.this.startActivity(i);  
            }
        });
    }

Answer 1

Instead of this

PhoneActivity.this.startActivity(i);  

Try this

startActivity(i);

You don't have any PhoneActivity in your code.

Also add this permission in your manifest file

<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>