动态添加单选按钮时在单选组中发出问题

Issue in radiogroup while adding radiobuttons dynamically

我没有看到任何 post 与我的问题类似的问题。我有一个 radiogroup,它有两个按钮,如下所示,

<RadioGroup
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        >
        <RadioButton
            android:id="@+id/basic"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            />
        <RadioButton
            android:id="@+id/advanced"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            />
    </RadioGroup>

在我的应用程序中,有时我需要 我动态添加的按钮,例如,

button=new AppCompatRadioButton(Activity.this);                                                              
button.setId(R.id.my_custom_id);                                                                                  
radiogroup.addView(button);

该无线电组的 Oncheckedchangelistener 代码,

(radioGroup).setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(RadioGroup group, int checkedId) {
                    if(checkedId== R.id.basic) {
                        button.setChecked(false);
                        //my code
                    }
                    else if(checkedId== R.id.advanced) {
                        button.setChecked(false);
                        //my code
                    }
                    else {
                       //it is newly added button's part
                    }
                }
            });

The problem is, when the newly added button is checked, it is not unchecked when I am clicking other button. I tried to solve this in OnCheckedChangeListener by setting button.setChecked(false); when other buttons were checked. But it doesn't work. I don't know which makes problem in that.

谁能帮忙me.Thanks!

不要通过 java 代码以编程方式制作单选按钮,而是这样做,即将该单选按钮放入 xml 文件中,但最初将 android:visibility 设置为消失,这将确保您的最后一个单选按钮不可见 :

<RadioGroup
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    >
    <RadioButton
        android:id="@+id/basic"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />
    <RadioButton
        android:id="@+id/advanced"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />

    <RadioButton
        android:id="@+id/new_radio"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:visibility:"gone"
        />
</RadioGroup>

并且,当您需要使用单选按钮时,然后在 java class 中再次使您的单选按钮可见,如下所示:

button.setVisibility(View.VISIBLE);

然后,您可以使用 setOnCheckedChangeListener 了:

radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) 
            {
                    //your code
            });

在初始化 RadioButton 时使用您的 Activity class 上下文。

而不是 Activity.this 使用 MainActivity.this

这是完整的工作代码..在你的 activity:

        RadioGroup group = (RadioGroup) findViewById(R.id.group);

        group.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

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

                if (checkedId == R.id.basic) {
                    //some code
                    Toast.makeText(MainActivity.this, "First", Toast.LENGTH_SHORT).show();
                } else if (checkedId == R.id.advanced) {
                    //some code
                    Toast.makeText(MainActivity.this, "Second", Toast.LENGTH_SHORT).show();
                } else if (checkedId == R.id.my_custom_id) {
                    //some code
                    Toast.makeText(MainActivity.this, "Third", Toast.LENGTH_SHORT).show();
                }

            }

        });
        RadioButton button = new RadioButton(this);
        button.setId(R.id.my_custom_id);
        button.setText("Dynamic Button");
        group.addView(button);
        group.clearCheck();

在你的布局中Xml:

<RadioGroup
    android:id = "@+id/group"
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    >
    <RadioButton
        android:id="@+id/basic"
        android:layout_width="wrap_content"
        android:text="Basic"
        android:layout_height="wrap_content"
        />
    <RadioButton
        android:id="@+id/advanced"
        android:layout_width="wrap_content"
        android:text="Advanced"
        android:layout_height="wrap_content"
        />
</RadioGroup>