Question

我在xml文件中添加了三个单选按钮。每个单选按钮都在单独的LinearLayout中，但是相同的xml。首先，我不知道如何将它们添加到radiogroup，同时将它们保持在单独的LinearLayouts中。其次，我写了以下代码，只检查一个单选按钮。但这不起作用。请让我知道如何继续，如果有更好的解决方案。这是代码。

RadioButton screenof;
RadioButton screenof3;
RadioButton onexit;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.settings);
    screenof = (RadioButton)findViewById(R.id.radioscreenof);
    screenof.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if(!screenof.isChecked())
            {
                screenof.setChecked(true);
                screenof3.setChecked(false);
                onexit.setChecked(false);
            }
        }
    });
    screenof3 = (RadioButton)findViewById(R.id.radioscreenof3);
    screenof3.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if(!screenof3.isChecked())
            {
                screenof3.setChecked(true);
                screenof.setChecked(false);
                onexit.setChecked(false);
            }
        }
    });
    onexit = (RadioButton)findViewById(R.id.radiolockimmediately);
    onexit.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if(!onexit.isChecked())
            {
                screenof3.setChecked(false);
                screenof.setChecked(false);
                onexit.setChecked(true);
            }
        }
    });
}

这是xml文件

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:layout_weight="1"
    android:background="@color/widgetcolor"
    >

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/deactiveTexts"
        android:clickable="false"
        android:layout_weight="1"

        >

        <TextView
            android:text="Lock Mode"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/colorAccent"
        android:layout_weight="1"
        android:id="@+id/lockscreenof"

        >

        <TextView
            android:text="Lock apps at screen off"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textView2"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/radioscreenof"
            android:layout_weight="1"
            android:paddingRight="30dp"
            app:buttonTint="@android:color/holo_green_dark"
            android:elevation="0dp"
            android:duplicateParentState="false"
            android:checked="false"
            />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/colorAccent"
        android:layout_weight="1"
        android:id="@+id/lockscreenof3"
        >

        <TextView
            android:text="Lock apps after screen of for 3 minutes"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textView3"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/radioscreenof3"
            android:layout_weight="1"
            android:paddingRight="30dp"
            app:buttonTint="@android:color/holo_green_dark" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/colorAccent"
        android:layout_weight="1"
        android:id="@+id/lockimmediately"
        >

        <TextView
            android:text="Lock apps immediately upon exit"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textView1"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />

        <RadioButton
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/radiolockimmediately"
            android:layout_weight="1"
            android:paddingRight="30dp"
            app:buttonTint="@android:color/holo_green_dark" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/colorAccent"
        android:id="@+id/passonce"
        android:layout_weight="1"
        >

        <TextView
            android:text="Enter password once to unlock all apps"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textView4"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/checkpassonce"
            android:layout_weight="1"
            android:paddingRight="30dp"
            app:buttonTint="@android:color/holo_green_dark" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/colorAccent"
        android:id="@+id/displayhint"
        android:layout_weight="1"
        >

        <TextView
            android:text="Display lock mode hint"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textView5"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/checkhint"
            android:layout_weight="1"
            android:paddingRight="30dp"
            app:buttonTint="@android:color/holo_green_dark"
            android:checked="false" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/deactiveTexts"
        android:clickable="false"
        android:layout_weight="1"
        >

        <TextView
            android:text="Password"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textView6"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/colorAccent"
        android:clickable="true"
        android:id="@+id/changepass"
        android:layout_weight="1"
        >

        <TextView
            android:text="Change password"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />
    </LinearLayout>

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp"
        android:layout_margin="1dp"
        android:background="@color/colorAccent"
        android:id="@+id/invisiblepattern"
        android:layout_weight="1"
        >

        <TextView
            android:text="Invisible Pattern"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="17dp"
            android:layout_weight="1"
            android:textStyle="bold" />

        <CheckBox
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/checkpatinvisible"
            android:layout_weight="1"
            android:paddingRight="30dp"
            app:buttonTint="@android:color/holo_green_dark" />
    </LinearLayout>

</LinearLayout>

我编辑了代码并粘贴了代码但是当我运行代码时出现了意想不到的结果。我把打印声明和这里打印的内容放在一起。我点击按钮自上而下一次。

Case 1
Case 1
Case 2
Case 2
Case 1
Case 2
Case 3

Answer 1

您可以通过实施 OnCheckedChangeListener

来实现此目的

尝试以下代码，它将适合您 -

screenof= (RadioButton) findViewById(R.id.radioscreenof);
screenof.setOnCheckedChangeListener(quest1);
screenof3= (RadioButton) findViewById(R.id.radioscreenof3);
screenof3.setOnCheckedChangeListener(quest1);
onExit= (RadioButton) findViewById(R.id.radiolockimmediately);
onExit.setOnCheckedChangeListener(quest1);

CompoundButton.OnCheckedChangeListener quest1 = new CompoundButton.OnCheckedChangeListener() {

    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        switch (buttonView.getId()) {
            case R.id.radioscreenof:
                radioscreenof.setChecked(true);
                radioscreenof3.setChecked(false);
                onnExit.setChecked(false);
                break;

            case R.id.radioscreenof3:
                radioscreenof.setChecked(false);
                radioscreenof3.setChecked(true);
                onnExit.setChecked(false);
                break;
            case R.id.onExit:
                radioscreenof.setChecked(false);
                radioscreenof3.setChecked(false);
                onExit.setChecked(true);              
        }
    }
};

Answer 2

使用此布局：

    <?xml version="1.0" encoding="utf-8"?>
<RadioGroup
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:gravity="left"
    android:layout_margin="25dp"
    android:background="#FF0"
    android:paddingRight="50dp"
    >

    <RadioButton
        android:id="@+id/radioscreenof"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Lock apps at screen off"
        android:onClick="onRadioButtonClicked"
        />
    <RadioButton
        android:id="@+id/radioscreenof3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Lock apps after screen of for 3 minutes"
        android:onClick="onRadioButtonClicked"
        />
    <RadioButton
        android:id="@+id/radiolockimmediately"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Lock apps immediately upon exit"
        android:onClick="onRadioButtonClicked"
        />

</RadioGroup>

然后对于点击监听器，首先清除所有对radiogroup的检查

//reference radiogroup ID from layout file
radiogroup.clearCheck();

为radiogroup

设置checkedchange监听器

radiogroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
           Log.d("chk", "id" + checkedId);

            if (checkedId == R.id.a) {
                //R.id.a = RadioButton ID in layout
                //some code
            } else if (checkedId == R.id.b) {
                //some code
            }

        }

    });

你也可以在radioButton上解雇听众......

 rb = (RadioButton) view.findViewById(R.id.a);
 rb.setChecked(true);

Answer 3

试试这个：

screenof= (RadioButton) findViewById(R.id.radioscreenof);
screenof.setOnCheckedChangeListener(quest1);
screenof3= (RadioButton) findViewById(R.id.radioscreenof3);
screenof3.setOnCheckedChangeListener(quest1);
onExit= (RadioButton) findViewById(R.id.radiolockimmediately);
onExit.setOnCheckedChangeListener(quest1);

CompoundButton.OnCheckedChangeListener quest1 = new CompoundButton.OnCheckedChangeListener() {

    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        switch (buttonView.getId()) {
            case R.id.radioscreenof:
                radioscreenof.setChecked(true);
                radioscreenof3.setChecked(false);
                onnExit.setChecked(false);
                break;

            case R.id.radioscreenof3:
                radioscreenof.setChecked(false);
                radioscreenof3.setChecked(true);
                onnExit.setChecked(false);
                break;
            case R.id.radiolockimmediately:
                radioscreenof.setChecked(false);
                radioscreenof3.setChecked(false);
                onExit.setChecked(true);              
        }
    }
};

这是@Amit回答我刚刚用 onCheckedChanged 中的 R.id.radiolockimmediately 替换了 R.id.onExit

（我无法发表评论所以我不得不发表新答案）

未检查Android单选按钮

3 个答案: