安卓调用打电话程序

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);

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

    button.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

  EditText phoneText=(EditText)findViewById(R.id.mobile);

String phoneno=phoneText.getText().toString();

if(phoneno==null||"".equals(phoneno.trim()))

{

Toast.makeText(getApplicationContext(), "没有电话号码",

    Toast.LENGTH_SHORT).show();

}

else

{

Toast.makeText(getApplicationContext(), "有电话号码"+phoneno,

    Toast.LENGTH_SHORT).show();

Intent intent=new Intent(Intent.ACTION_CALL,Uri.parse("tel:"+phoneno));

startActivity(intent);

}

}        

        });

    }

同时，我们需要增加拨打电话的权限，在manifest中修改：

<uses-sdk android:minSdkVersion="7"/>

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