打电话示范

public void onClick(View arg0) {
// TODO Auto-generated method stub
EditText edittext1=(EditText)MyFirstAndroidActivity.this.findViewById(R.id.text1);
String str=edittext1.getText().toString();
Intent intent1 = new Intent();
intent1.setAction("android.intent.action.CALL");
intent1.setData(Uri.parse("tel:"+ str));
startActivity(intent1); 


} 添加权限：<uses-permission android:name="android.permission.CALL_PHONE"/>