android - 自定义类中的自定义对话框返回 bool 值

Question

我已经搜索了答案但没有找到，所以请帮助我:)

我有一个自定义类:

public class CustomClass {

    private final Context ctx;
    public CustomClass(Context ctx) {
        this.ctx = ctx;
    }

    public boolean setDialog(int head, int text) {
        final boolean value;

        final Dialog d = new Dialog(ctx);
        d.requestWindowFeature(Window.FEATURE_NO_TITLE);
        d.setContentView(R.layout.custom2_dialog);

        TextView txtHead = (TextView) d.findViewById(R.id.custom2_txtHead);
        txtHead.setText(ctx.getResources().getString(head));
        TextView txtText = (TextView) d.findViewById(R.id.custom2_txtText);
        txtText.setText(ctx.getResources().getString(text));

        Button btnOK = (Button) d.findViewById(R.id.custom2_btnOK);
        btnOK.setText("OK");
        btnOK.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                value = true;
                d.dismiss();
            }
        });

        Button btnNO = (Button) d.findViewById(R.id.custom2_btnNO);
        btnNO.setText("NO");
        btnNO.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                value = false;
                d.dismiss();
            }
        });

        d.show();

        return value;
    }
}

您可以看到我在自定义类中创建了一个自定义对话框，因为我不想在每个 Activity 中都创建一个对话框。现在，当我在 Activity 中使用它时:

CustomClass cC = new CustomClass(this);
if(cC.setDialog(R.string.head, R.string.text)) {
    // user checked OK
} else {
   // user checked NO
}

如何知道用户是否选中了 OK 或 NO，因为返回 true、false 值在自定义类中不起作用，对话框不会在用户单击之前等待，它会自动返回一个值。

Answer 1

这是您问题的解决方案。首先，如果您正在创建自定义对话框，那么您必须扩展 Dialog 类以读取响应并实现 OnClickListener。

class CustomizeDialog extends Dialog implements OnClickListener
{
  // some code
public CustomizeDialog(Activity activity, String title, String msg, int i, Typeface typeface) 
    {
        super(activity);        
        this.activity = activity;
        intFlag = i;
        setContentView(R.layout.relative);
        dialogButtonYes = (Button) findViewById(R.id.buttonCustomDialogYes);
        dialogButtonNo = (Button) findViewById(R.id.buttonCustomDialogNo);
        textView = (TextView) findViewById(R.id.textViewCustomTitle);
        this.msg = msg;
        dialogButtonNo.setOnClickListener(this);
        dialogButtonYes.setOnClickListener(this);
    }
}

@Override
public void onClick(View v) {
        if (v == dialogButtonYes)
        {
            Intent intent =new Intent(activity, CallForOne.class);
            activity.startActivity(intent);
            dismiss();
        }
        else
            dismiss();
    }
    else if(intFlag == 2)
    {
        if (v == dialogButtonYes)
        {
            Intent intent =new Intent(activity, CallMe.class);
            activity.startActivity(intent);
            dismiss();
        }
        else
            dismiss();
}

和relative.xml文件

<TextView
    android:id="@+id/textViewCustomTitle"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp" />

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textViewCustomTitle"
    android:orientation="horizontal"
    android:paddingBottom="1.0dip"
    android:paddingLeft="4.0dip"
    android:paddingRight="4.0dip"
    android:paddingTop="5.0dip" >

    <Button
        android:id="@+id/buttonCustomDialogYes"
        style="@style/styleNormalButton"
        android:layout_width="0.0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1.0"
        android:text="@string/yes" />

    <Button
        android:id="@+id/buttonCustomDialogNo"
        style="@style/styleNormalButton"
        android:layout_width="0.0dp"
        android:layout_height="fill_parent"
        android:layout_weight="1.0"
        android:text="@string/no" />
</LinearLayout>

和主类

    class Main implements OnClickListener
    {
    onCreate()
    {
    //your code
    }

    public void on click()
    {
    customizeDialog = new CustomizeDialog(CustomDialogExample.this,getString(R.string.title_for_one),getString(R.string.msg_for_one),1,"String");
    customizeDialog.show();
    }
}