[Android] radiobutton

1. The webview loading function was recently implemented. However, if the Option Button is placed in the webview, the response is very slow when you click it. Therefore, the native radiobutton option is used, and the question and answer are placed in webview. However, the number of options is unknown, so you need to add a button dynamically. A radiogroup stores a number of radio (these are data obtained from the database ), then, the code for dynamically adding buttons is as follows: ------------------ 4 5 private linearlayout layout; // layout. You can obtain 6 private radiogroup in the XML layout; // click the button group 7 8 Public void oncreate (bundle savedinstancestate) {9 super. oncreate (savedinstancestate); 10 11 layout = new linearlayout (this); // instantiate the layout object 12 13 group = new radiogroup (this ); // instantiate single-choice button group 14 15 // Add single-choice button 16 for (INT I = 0; I <5; I ++) {17 radiobutton radio = new radiobutton (this ); 18 radio. settext ("radio" + I); 19 group. addview (radio); 20} 21 22 // Add the radio button group to the layout 23 layout. addview (Group); 24 25 this. setcontentview (layout); 26}