我有这样的情况,我有一个tablelayout有4个radiogroups,每个radiogroup有2个radiobutton。如何使4个放射组彼此同步。当检查放射线组1中的无线电按钮时,放射线组2中的无线电按钮是否未经检查?
这是我的XML代码:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_margin="20sp"
android:textSize="25sp"
android:fontFamily="monospace"
android:layout_gravity="center_horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/judulkolomtes"/>
<TableLayout
android:layout_margin="10sp"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:background="@drawable/border_white">
<RadioGroup
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:orientation="horizontal">
<TextView
android:padding="10sp"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/P"
android:textStyle="bold"
android:textAlignment="center"
android:textSize="18sp"
android:textColor="@color/white"/>
<TextView
android:padding="10sp"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="@string/K"
android:textStyle="bold"
android:textAlignment="center"
android:textSize="18sp"
android:textColor="@color/white"/>
</RadioGroup>
<TextView
android:padding="10sp"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:text="@string/pernyataanhead"
android:textStyle="bold"
android:textSize="18sp"
android:textColor="@color/white"/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:background="@drawable/border_black">
<RadioGroup
android:id="@+id/Rgroup1"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/Pradio1"
android:checked="false"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
<RadioButton
android:id="@+id/Kradio1"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
</RadioGroup>
<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingTop="2dp"
android:text="@string/pernyataan1"
android:textSize="19sp"
android:textColor="@color/black"/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/border_black"
android:orientation="horizontal">
<RadioGroup
android:id="@+id/Rgroup2"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:orientation="horizontal">
<RadioButton
android:layout_gravity="center"
android:id="@+id/Pradio2"
android:checked="false"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
<RadioButton
android:layout_gravity="center"
android:id="@+id/Kradio2"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
</RadioGroup>
<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingTop="2dp"
android:text="@string/pernyataan2"
android:textSize="19sp"
android:textColor="@color/black"/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:background="@drawable/border_black">
<RadioGroup
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/Pradio3"
android:layout_gravity="center"
android:checked="false"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
<RadioButton
android:id="@+id/Kradio3"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
</RadioGroup>
<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingTop="2dp"
android:text="@string/pernyataan3"
android:textSize="19sp"
android:textColor="@color/black"/>
</TableRow>
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:background="@drawable/border_black">
<RadioGroup
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/Pradio4"
android:layout_gravity="center"
android:checked="false"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
<RadioButton
android:id="@+id/Kradio4"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@drawable/border_black"/>
</RadioGroup>
<TextView
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingTop="2dp"
android:text="@string/pernyataan4"
android:textSize="19sp"
android:textColor="@color/black"/>
</TableRow>
</TableLayout>
我试过使用这段代码:
List<RadioButton> radioButtons = new ArrayList<RadioButton>();
radioButtons.add( (RadioButton)findViewById(R.id.Pradio1) );
radioButtons.add( (RadioButton)findViewById(R.id.Pradio2) );
radioButtons.add( (RadioButton)findViewById(R.id.Pradio3) );
for (RadioButton button : radioButtons){
button.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) processRadioButtonClick(buttonView);
}
});
}
private void processRadioButtonClick(CompoundButton buttonView){
for (RadioButton button : radioButtons){
if (button != buttonView ) button.setChecked(false);
}
}
但结果并不像我预期的那样。当我在放射线组1检查了无线电按钮时,我检查了放射线组2中的无线电频率。放射线组1中的无线电按钮变得不受控制,但是当我想在放射线组1中再次检查无线电按钮时,无法检查无线电按钮,同时放射线按钮在放射线组2中也是如此。这个问题有解决方案吗?根据我的分析,当检查另一个无线电按钮时,使无线电按钮失效,导致无线电按钮无法检查。
这是解决方案。
public class MainActivity extends AppCompatActivity {
List<RadioButton> radioButtons;
List<RadioGroup> radioGroups;
boolean flg = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final RadioButton pradio1 = (RadioButton) findViewById(R.id.Pradio1);
final RadioButton pradio2 = (RadioButton) findViewById(R.id.Pradio2);
final RadioButton pradio3 = (RadioButton) findViewById(R.id.Pradio3);
final RadioButton pradio4 = (RadioButton) findViewById(R.id.Pradio4);
final RadioButton kradio1 = (RadioButton) findViewById(R.id.Kradio1);
final RadioButton kradio2 = (RadioButton) findViewById(R.id.Kradio2);
final RadioButton kradio3 = (RadioButton) findViewById(R.id.Kradio3);
final RadioButton kradio4 = (RadioButton) findViewById(R.id.Kradio4);
final RadioGroup rgroup1 = (RadioGroup) findViewById(R.id.Rgroup1);
final RadioGroup rgroup2 = (RadioGroup) findViewById(R.id.Rgroup2);
final RadioGroup rgroup3 = (RadioGroup) findViewById(R.id.Rgroup3);
final RadioGroup rgroup4 = (RadioGroup) findViewById(R.id.Rgroup4);
radioButtons = new ArrayList<RadioButton>();
radioButtons.add(pradio1);
radioButtons.add(pradio2);
radioButtons.add(pradio3);
radioButtons.add(pradio4);
radioButtons.add(kradio1);
radioButtons.add(kradio2);
radioButtons.add(kradio3);
radioButtons.add(kradio4);
radioGroups = new ArrayList<RadioGroup>();
radioGroups.add(rgroup1);
radioGroups.add(rgroup2);
radioGroups.add(rgroup3);
radioGroups.add(rgroup4);
Log.e("JK->",""+ ((RadioGroup) pradio1.getParent()).getId());
for (RadioButton button : radioButtons) {
button.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if (isChecked) {
Log.e("JK->","JK");
processRadioButtonClick(buttonView);
}
}
});
}
}
private void processRadioButtonClick(CompoundButton buttonView) {
for (RadioGroup radioGroup: radioGroups){
if (radioGroup.getId() != ((RadioGroup) buttonView.getParent()).getId()) {
radioGroup.clearCheck();
}
}
}
}
在Android中无法取消选中RadioButton
。您试图使用setChecked(false)取消选中RadioButton
。它在内部类(Android的RadioButton类)中行为不端。它在视觉上取消选中单选按钮但不是逻辑上的(我自己虽然来自RadioButton行为)。这就是你的代码无效的原因。
为了解决这个问题而不是使用setChecked(false)取消选中RadioButton,我使用radioGroup.clearCheck()
取消选中该特定组的两个按钮(视觉和逻辑两者)。我不确定这是一个明确的解释。如果您有任何疑问,请告诉我。 :)