Java 使用onCheckedChangeListener清除多个无线电组上的选定项
我目前正在做我的大学项目。在应用程序中,我有一个带有片段的活动。该片段包含一个布局,该布局具有嵌套的线性布局,其中包含多个自定义单选按钮。我不能把一个单一的单选组来启用按钮的单一选择,因为线性布局使其无法按预期工作Java 使用onCheckedChangeListener清除多个无线电组上的选定项,java,android,radio-group,Java,Android,Radio Group,我目前正在做我的大学项目。在应用程序中,我有一个带有片段的活动。该片段包含一个布局,该布局具有嵌套的线性布局,其中包含多个自定义单选按钮。我不能把一个单一的单选组来启用按钮的单一选择,因为线性布局使其无法按预期工作 rg = findViewById(R.id.rg); rg1 = findViewById(R.id.rg1); rg.setOnCheckedChangeListener((radioGroup, i) -> { RadioButton rb = findView
rg = findViewById(R.id.rg);
rg1 = findViewById(R.id.rg1);
rg.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg1.clearCheck();
}
});
rg1.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg.clearCheck();
}
});
因此,我做的是为5个部分创建一个单选组,为了能够从所有按钮中仅选择一项,我尝试使用clearCheck()以编程方式清除其他单选组上的选择
rg = findViewById(R.id.rg);
rg1 = findViewById(R.id.rg1);
rg.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg1.clearCheck();
}
});
rg1.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg.clearCheck();
}
});
fragment\u parking\u layout.xml
<?xml version="1.0" encoding="utf-8"?>
<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="match_parent"
tools:context=".ParkingLayoutFragment"
android:orientation="vertical">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal">
<LinearLayout
android:layout_width="275dp"
android:layout_height="100dp"
android:background="@color/colorPrimary"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="FACILITY"
android:textColor="#fff"/>
</LinearLayout>
<TextView
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="Entrance/Exit"
android:textSize="12dp"
android:textColor="#31a81c"
android:textAlignment="center"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:layout_marginEnd="50dp"
android:orientation="horizontal">
<RadioGroup
android:id="@+id/radio_group_1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp"
android:background="@color/colorPrimary">
<RadioButton
android:id="@+id/rbtn_slot_1"
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"
android:layout_marginTop="5dp"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
</RadioGroup>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="60dp"
android:layout_height="40dp"
android:gravity="center_horizontal"
android:layout_marginStart="50dp"
android:background="@color/colorPrimary">
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="40dp"
android:orientation="vertical"
android:gravity="bottom">
<ImageView
android:layout_width="24dp"
android:layout_height="24dp"
android:src="@drawable/ic_stairs"
android:layout_margin="5dp"
/>
<LinearLayout
android:layout_width="40dp"
android:layout_height="5dp"
android:gravity="bottom"
android:background="@color/colorPrimary"/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginStart="40dp"
android:layout_marginTop="30dp"
android:padding="5dp"
android:background="@color/colorPrimary">
<RadioGroup
android:id="@+id/radio_group_2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_marginEnd="8dp">
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
</RadioGroup>
<RadioGroup
android:id="@+id/radio_group_3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
</RadioGroup>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<RadioGroup
android:id="@+id/radio_group_5"
android:layout_width="75dp"
android:layout_height="80dp"
android:gravity="end"
android:orientation="horizontal">
<RadioButton
android:layout_width="15dp"
android:layout_height="40dp"
android:background="@drawable/custom_radio_pwd"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="15dp"
android:layout_height="40dp"
android:background="@drawable/custom_radio_pwd"
android:button="@android:color/transparent"/>
<LinearLayout
android:layout_width="15dp"
android:layout_height="80dp"
android:background="@color/colorPrimary"/>
</RadioGroup>
<RadioGroup
android:id="@+id/radio_group_4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="40dp"
android:layout_gravity="end"
android:orientation="vertical"
android:background="@color/colorPrimary"
android:gravity="center"
android:padding="5dp">
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:layout_marginTop="3dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
<RadioButton
android:layout_width="40dp"
android:layout_height="13dp"
android:background="@drawable/custom_radio"
android:button="@android:color/transparent"/>
</RadioGroup>
</LinearLayout>
</LinearLayout>
rg = findViewById(R.id.rg);
rg1 = findViewById(R.id.rg1);
rg.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg1.clearCheck();
}
});
rg1.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg.clearCheck();
}
});
如您所见,我已将onCheckedChangeListener设置为2无线电组,因此当我在第一个无线电组上选择一个项目时,第二个无线电组将被清除,反之亦然。但当我运行应用程序并尝试选择一个项目时,应用程序只是冻结并重新启动到主活动
rg = findViewById(R.id.rg);
rg1 = findViewById(R.id.rg1);
rg.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg1.clearCheck();
}
});
rg1.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg.clearCheck();
}
});
这是logcat中的一部分错误,看起来像一个循环
at com.grawlix.parkingally.ParkingLayoutFragment$1.onCheckedChanged(ParkingLayoutFragment.java:39)
at android.widget.RadioGroup.setCheckedId(RadioGroup.java:173)
at android.widget.RadioGroup.check(RadioGroup.java:167)
at android.widget.RadioGroup.clearCheck(RadioGroup.java:209)
at com.grawlix.parkingally.ParkingLayoutFragment$2.onCheckedChanged(ParkingLayoutFragment.java:46)
at android.widget.RadioGroup.setCheckedId(RadioGroup.java:173)
at android.widget.RadioGroup.check(RadioGroup.java:167)
at android.widget.RadioGroup.clearCheck(RadioGroup.java:209)
at com.grawlix.parkingally.ParkingLayoutFragment$1.onCheckedChanged(ParkingLayoutFragment.java:39)
at android.widget.RadioGroup.setCheckedId(RadioGroup.java:173)
at android.widget.RadioGroup.check(RadioGroup.java:167)
at android.widget.RadioGroup.clearCheck(RadioGroup.java:209)
at com.grawlix.parkingally.ParkingLayoutFragment$2.onCheckedChanged(ParkingLayoutFragment.java:46)
at android.widget.RadioGroup.setCheckedId(RadioGroup.java:173)
at android.widget.RadioGroup.check(RadioGroup.java:167)
at android.widget.RadioGroup.clearCheck(RadioGroup.java:209)
read: unexpected EOF!
rg = findViewById(R.id.rg);
rg1 = findViewById(R.id.rg1);
rg.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg1.clearCheck();
}
});
rg1.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg.clearCheck();
}
});
希望有人知道这是怎么回事。感谢并为我的英语道歉。请尝试下面的代码,
rg
是您的第一个无线组,rg1
是第二个无线组,您当前将面临代码错误clearChecks()
将触发setOnCheckedChangeListener()
您需要检查返回的视图是否为null
rg = findViewById(R.id.rg);
rg1 = findViewById(R.id.rg1);
rg.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg1.clearCheck();
}
});
rg1.setOnCheckedChangeListener((radioGroup, i) -> {
RadioButton rb = findViewById(i);
if (rb != null && rb.isChecked()) {
rg.clearCheck();
}
});
已经意识到它会再次触发on-check侦听器并找到一个临时解决方案,但我尝试了你的解决方案,它的效果比我的好。非常感谢这帮了大忙。