Question

在getView（）方法中，我想调用getIntent（）。如何在不开始新活动的情况下实现这一目标。像这样的getView方法

public View getView(final int position, View convertView, ViewGroup parent) {
    PaymentData rowItem = getItem(position);
    LayoutInflater mInflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    if (convertView == null) {
        convertView = mInflater.inflate(
                com.android.paypal.homeactivity.R.layout.list_item, null);
        holder = new ViewHolder();
        holder.radioBtn = (RadioButton) convertView
                .findViewById(com.android.paypal.homeactivity.R.id.rdb_payment_method);
        convertView.setTag(holder);
    } else
        holder = (ViewHolder) convertView.getTag();

    if (position == getCount() - 1 && userSelected == false) {
        holder.radioBtn.setChecked(true);
        mCurrentlyCheckedRB = holder.radioBtn;
    } else {
        holder.radioBtn.setChecked(false);
    }

    holder.radioBtn.setText(rowItem.getRdbText());
    return convertView;
}

Answer 1

以下是此问题的解决方案。

            Intent intent = ((Activity) context).getIntent();
            intent.putExtra("SELECTED_PAYMENT", mCurrentlyCheckedRB
                    .getText().toString());
            ((Activity) context).setResult(((Activity) context).RESULT_OK,
                    intent);
            ((Activity) context).finish();

Answer 2

public class MyAdapter extends ArrayAdapter
{
    private Context context;
    private Intent intent;

    MyAdapter(Context context)
    {
        this.context = context;
    }

    MyAdapter(Context context,Intent intent)
    {
       this(context);
       this.intent = intent; // use this intent
    }

    private View getView()
    {
        // use intent here
    }

使用活动中的第二个构造函数

创建Adapter类的Object

Intent yourIntent = new Intent();

或者：

Intent yourIntent = getIntent();
MyAdapter adapter = new MyAdapter(context,yourIntent); // here pass intent

Answer 3

在适配器类中，您传递活动实例并使用Context变量捕获它。以下代码段将为您提供帮助，

私有Context mcontext;

private Intent adapintent;

MyIntentAdapter(Context context){
    this.mcontext = context;
}

MyIntentAdapter(Context context,Intent intent){
   this(context);
   this.adapintent= intent;

}

Answer 4

public View getView（final int position，View convertView，ViewGroup parent）{

PaymentData rowItem = getItem(position);


LayoutInflater mInflater = (LayoutInflater) context
        .getSystemService(Context.getintent().LAYOUT_INFLATER_SERVICE);

{

//你可以包含这个：context.getintent（）; }

如何在适配器类中调用getIntent（）

4 个答案: