RadioGroup Realizes Multi line Arrangement of Radio Boxes
- 2021-11-13 18:23:34
- OfStack
The use of RadioGroup is very simple, just 1 general case, can only be horizontal or vertical arrangement. If let more horizontal arrangement is not so simple.
Maybe there are children's shoes to say, will RadioButton be written into LineLayout soon? After testing, I can do that, and I did it at first. But when I ran it, I found an bug-the radio button is no longer a radio button. And the selection event will not be monitored. This requires us to find a way. In fact, it is not difficult to implement. Just use a few more RadioGroup (to handle 1 event in the code).
On the code:
1. Layout in 1. xml:
<RelativeLayout
android:id="@+id/main_tab_container"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingTop="30dp">
<RadioGroup
android:id="@+id/radio1"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_margin="5dp"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rb_1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="GBP Pound sterling " />
<RadioButton
android:id="@+id/rb_2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="HKD Hong Kong dollar " />
<RadioButton
android:id="@+id/rb_3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="USD US dollar Ԫ" />
</RadioGroup>
<RadioGroup
android:id="@+id/radio2"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_below="@+id/radio1"
android:layout_margin="5dp"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rb_4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="CHF Swiss franc " />
<RadioButton
android:id="@+id/rb_5"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="SGD Singapore dollar " />
<RadioButton
android:id="@+id/rb_6"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="SEK Swedish kronor " />
</RadioGroup>
<RadioGroup
android:id="@+id/radio3"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_below="@+id/radio2"
android:layout_margin="5dp"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rb_7"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="JPY Japanese yen " />
<RadioButton
android:id="@+id/rb_8"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="CAD Canadian dollar Ԫ" />
<RadioButton
android:id="@+id/rb_9"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="@dimen/RB_text_size"
android:text="AUD Australian dollar " />
</RadioGroup>
<RadioGroup
android:id="@+id/radio4"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_below="@+id/radio3"
android:layout_margin="5dp"
android:orientation="horizontal">
<RadioButton
android:id="@+id/rb_10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="@dimen/RB_text_size"
android:text="EOR Euro Ԫ" />
</RadioGroup>
</RelativeLayout>This is a multi-line layout, which is just one part of my layout, where android: textSize= "@ dimen/RB_text_size" is the font size defined by myself.
2. Use and handling in 2. activity:
public class SelectMoneyActivity extends BaseActivity {
String strBtnSelected = ""; // Record which option is selected
private RadioGroup rg1, rg2, rg3, rg4;
private RadioButton rb_1, rb_2, rb_3, rb_4, rb_5, rb_6, rb_7, rb_8, rb_9, rb_10;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_select_money);
initView();
}
private void initView() {
rg1 = (RadioGroup) findViewById(R.id.radio1);
rg2 = (RadioGroup) findViewById(R.id.radio2);
rg3 = (RadioGroup) findViewById(R.id.radio3);
rg4 = (RadioGroup) findViewById(R.id.radio4);
rb_1 = (RadioButton) findViewById(R.id.rb_1);
rb_2 = (RadioButton) findViewById(R.id.rb_2);
rb_3 = (RadioButton) findViewById(R.id.rb_3);
rb_4 = (RadioButton) findViewById(R.id.rb_4);
rb_5 = (RadioButton) findViewById(R.id.rb_5);
rb_6 = (RadioButton) findViewById(R.id.rb_6);
rb_7 = (RadioButton) findViewById(R.id.rb_7);
rb_8 = (RadioButton) findViewById(R.id.rb_8);
rb_9 = (RadioButton) findViewById(R.id.rb_9);
rb_10 = (RadioButton) findViewById(R.id.rb_10);
btn_back = (Button) findViewById(R.id.btn_back);
btn_next = (Button) findViewById(R.id.btn_next);
// Create listeners for each RadioButton Register monitor
BtnSelected btnSelected1 = new BtnSelected("1");
BtnSelected btnSelected2 = new BtnSelected("2");
BtnSelected btnSelected3 = new BtnSelected("3");
BtnSelected btnSelected4 = new BtnSelected("4");
BtnSelected btnSelected5 = new BtnSelected("5");
BtnSelected btnSelected6 = new BtnSelected("6");
BtnSelected btnSelected7 = new BtnSelected("7");
BtnSelected btnSelected8 = new BtnSelected("8");
BtnSelected btnSelected9 = new BtnSelected("9");
BtnSelected btnSelected10 = new BtnSelected("10");
rb_1.setOnClickListener(btnSelected1);
rb_2.setOnClickListener(btnSelected2);
rb_3.setOnClickListener(btnSelected3);
rb_4.setOnClickListener(btnSelected4);
rb_5.setOnClickListener(btnSelected5);
rb_6.setOnClickListener(btnSelected6);
rb_7.setOnClickListener(btnSelected7);
rb_8.setOnClickListener(btnSelected8);
rb_9.setOnClickListener(btnSelected9);
rb_10.setOnClickListener(btnSelected10);
// Listener for click events
public class BtnSelected implements View.OnClickListener {
private String btnId;
public BtnSelected(String str) {
btnId = str;
}
@Override
public void onClick(View v) {
strBtnSelected = btnId; // Selected a 1 Items
isSelect = true;
// Click on the number 1 Line, empty the clicked items of another line
if (btnId.equals("1") || btnId.equals("2") || btnId.equals("3")) {
rg2.clearCheck();
rg3.clearCheck();
rg4.clearCheck();
} else if (btnId.equals("4") || btnId.equals("5") || btnId.equals("6")) {
rg1.clearCheck();
rg3.clearCheck();
rg4.clearCheck();
} else if (btnId.equals("7") || btnId.equals("8") || btnId.equals("9")) {
rg1.clearCheck();
rg2.clearCheck();
rg4.clearCheck();
} else {
rg1.clearCheck();
rg2.clearCheck();
rg3.clearCheck();
}
}
}
}
It's done. Another way is to customize the RadioGroup implementation, but this is a bit complicated. I went home from work anyway.
Additional:
Use RadioGroup. setcheck (id of RadioButton) to initialize the problem that the A button is selected by default, but listening will not be performed
Solution: Because check= "true" has been set in the layout for the A button; Removing this property will enable listening.