android电话拨号器

Activity类： 

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.*;

public class PhoneActivity extends Activity {
 private EditText phoneText;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        phoneText=(EditText)findViewById(R.id.phoneText);
        call();
    }
   
    public void call(){
  Button phonebutton=(Button)findViewById(R.id.button);
  phonebutton.setOnClickListener(new CallOnClick());
 }
   
    private final class CallOnClick implements OnClickListener{
  public void onClick(View v) {
   String phonenumber=phoneText.getText().toString();
   if(phonenumber==null||phonenumber.length()<1){
    Toast.makeText(PhoneActivity.this,R.string.empty, Toast.LENGTH_SHORT).show();
   }else{
    Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + phonenumber));
    startActivity(intent);
    Toast.makeText(PhoneActivity.this,R.string.success, Toast.LENGTH_SHORT).show();
   }  
  }
    }
}

 

Manifest文件中，配置电话拨号的permission

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