RadioGroup Inside Dialog Alert 当 .positive 时应用程序崩溃

Question

我有一个包含 5 个按钮的 Radiogroup 的警报对话框。按下确定后，无论我是否选择单选按钮，应用程序都会崩溃。为 Radiogroup 尝试了不同的方法，但都失败了。如果有人可以帮助我，我将不胜感激。

PS。我有一个调用此警报对话框活动的开关盒。 colorpickdialog();

这是我的警报对话框 XML：

<RadioGroup
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/radiosizeg"
    android:layout_below="@+id/bgadddialogsize"
    android:layoutDirection="rtl"
    android:gravity="start"
    android:layout_gravity="start"
    android:layout_alignParentRight="true"
    android:layout_alignParentEnd="true">
<RadioButton
    android:text="@string/sizesmall"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/sizesmall"/>

<RadioButton
    android:text="@string/sizemed"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/sizemed" />

    <RadioButton
        android:text="@string/sizelar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/sizelar" />

    <RadioButton
        android:text="@string/sizefill"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/sizefill" />

    <RadioButton
        android:text="@string/sizecustom"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/sizecustom" />
</RadioGroup>

这是我的 MainActivity.class：

public void colorpickdialog() {
    // get prompts.xml view
    final RadioGroup radiosizeg = (RadioGroup) findViewById(R.id.radiosizeg);
    LayoutInflater layoutInflater2 = LayoutInflater.from(MainActivity.this);
    View promptView2 = layoutInflater2.inflate(R.layout.colorpickdialog, null);
    AlertDialog.Builder alertDialogBuilder2 = new AlertDialog.Builder(MainActivity.this);
    alertDialogBuilder2.setView(promptView2);
    // setup a dialog window
    alertDialogBuilder2.setCancelable(false)
            .setPositiveButton(getString(R.string.ok), new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {

                    radiosizeg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
                        @Override
                        public void onCheckedChanged(RadioGroup radioGroup, int i) {
                            int id = radiosizeg.getCheckedRadioButtonId();
                            switch (id) {
                                case R.id.sizesmall:
                                    Toast.makeText(getApplicationContext(),"A", Toast.LENGTH_SHORT).show();
                                    break;
                                case R.id.sizemed:
                                    Toast.makeText(getApplicationContext(),"B", Toast.LENGTH_SHORT).show();
                                    break;
                                case R.id.sizelar:
                                    Toast.makeText(getApplicationContext(),"C", Toast.LENGTH_SHORT).show();
                                    break;
                                case R.id.sizefill:
                                    Toast.makeText(getApplicationContext(),"D", Toast.LENGTH_SHORT).show();
                                    break;
                                case R.id.sizecustom:
                                    Toast.makeText(getApplicationContext(),"E", Toast.LENGTH_SHORT).show();
                                    break;
                                default:
                                    onCheckedChanged(radioGroup, i);
                                    break;
                            }
                        }
                    });
                }
            })
            .setNegativeButton(getString(R.string.cancel),
                    new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                            dialog.cancel();
                        }
                    });

错误堆栈跟踪

10-27 20:56:53.753 4312-4327/? E/ReportTools: This is not beta user build
10-27 20:56:53.959 4312-7462/? E/HsmCoreServiceImpl: onTransact in code is: 102
10-27 20:56:54.025 13521-13539/? E/HwLauncher: SettingsEx , no such field.
10-27 20:56:54.088 8152-8242/? E/PackageLogInfoManager: checkPackageLogState, cr: android.app.ContextImpl$ApplicationContentResolver@4d74931, packageNames: null

Answer 1

嗯，我有一个简单的方法来处理 AlertDialog 框中的 Radiogroup： 每次创建对话框时都会出现问题，孩子会获得额外的 id：

Xml 代码：Just Radio 组部分：

        <RadioGroup
            android:id="@+id/rg_Payment"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/_25sdp"
            android:layout_marginHorizontal="@dimen/_25sdp"
            android:orientation="horizontal"
            android:weightSum="3">

            <RadioButton
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="@string/Paid"
                android:textColor="@color/green"/>

            <RadioButton
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="@string/Trail"
                android:textColor="@color/orange"/>

            <RadioButton
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="@string/blocked"
                android:textColor="@color/colorRed"/>
        </RadioGroup>

还有代码：

    public void updateStatus() {
    AlertDialog.Builder builder = new AlertDialog.Builder(mActivity);
    LayoutInflater inflater = LayoutInflater.from(mActivity);
    View dialogView = inflater.inflate(R.layout.status_popup, null);
    builder.setView(dialogView);
    RelativeLayout rrSubmit = dialogView.findViewById(R.id.rr_submit);
    RelativeLayout rr_lg_cancel = dialogView.findViewById(R.id.rr_lg_cancel);
    RadioGroup rg_Payment = dialogView.findViewById(R.id.rg_Payment);
    final AlertDialog alert = builder.create();
    paymentType = "";
    rg_Payment.setOnCheckedChangeListener((radioGroup, id) -> {
        int position = radioGroup.getCheckedRadioButtonId() % radioGroup.getChildCount();
        setLog("MyRadioChoice", "Choice" + position);

        switch (position) {
            case 0:
                paymentType = "Blocked";
                break;
            case 1:
                paymentType = "Paid";
                break;
            case 2:
                paymentType = "Trail";
                break;
            default:
                paymentType = "";
        }
    });

    rrSubmit.setOnClickListener(v -> {
    //do something        
    });


    rr_lg_cancel.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            alert.dismiss();
        }
    });
    alert.show();

}

这里使用下面的方法来解决单选按钮的动态创建问题

   int position = radioGroup.getCheckedRadioButtonId()% radioGroup.getChildCount(); 

Answer 2

我想通了。

问题是radiogroup是在实际视图中定义的：

final RadioGroup radiosizeg = (RadioGroup) findViewById(R.id.radiosizeg);

但是，我将视图夸大为：

LayoutInflater layoutInflater2 = LayoutInflater.from(MainActivity.this);
    View promptView2 = layoutInflater2.inflate(R.layout.colorpickdialog, null);
    AlertDialog.Builder alertDialogBuilder2 = new AlertDialog.Builder(MainActivity.this);
    alertDialogBuilder2.setView(promptView2);

所以，解决办法是在promptView2里面定义视图：

final RadioGroup radiosizeg = (RadioGroup) promptView2.findViewById(R.id.radiosizeg)

伟大的（）；