使用setStyle时,DialogFragment中的Android ListView会出错

时间:2012-09-28 10:28:50

标签: android android-ui android-4.0-ice-cream-sandwich android-dialog android-dialogfragment

我在使用带有ListView的DialogFragment时遇到问题。当我在onCreate中使用setStyle时会出现问题。

以下是代码(为了更清楚地了解问题,我将品红色的列表文本视图着色):

import android.app.DialogFragment;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MenuDialog extends DialogFragment {

    public static MenuDialog create() {
        MenuDialog frag = new MenuDialog();
        return frag;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(STYLE_NO_TITLE, 0);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        ListView v = new ListView(getActivity());
        v.setAdapter(new BaseAdapter() {

            @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                TextView view = null;
                if (convertView == null) {
                    view = new TextView(getActivity());
                    view.setTextAppearance(getActivity(), android.R.style.TextAppearance_Large);
                    view.setPadding(15, 15, 15, 15);
                    view.setBackgroundColor(Color.MAGENTA);
                }
                else
                    view = (TextView) convertView;

                switch (position) {
                case 0: view.setText("Random"); break;
                case 1: view.setText("Community favourites"); break;
                case 2: view.setText("Change image"); break;
                case 3: view.setText("Share"); break;
                case 4: view.setText("Informations"); break;
                }

                return view;
            }

            @Override public long getItemId(int arg0) { return 0; }
            @Override public Object getItem(int arg0) { return null; }
            @Override public int getCount() { return 5; }
        });
        return v;
    }
}

这是它提供的对话框的图像:

No title: Not working

现在,如果我只是评论setStyle(STYLE_NO_TITLE,0);在onCreate方法中,一切都按预期工作:

With title : works

我做错了什么? 我不能使用简单的AlertDialog,因为我需要自定义更多的列表项。

编辑: You can download here a demo Android Eclipse project that demonstrates the problem

4 个答案:

答案 0 :(得分:2)

  1. list.xml

    <?xml version="1.0" encoding="utf-8"?>
     <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical" >
    
      <ListView
        android:id="@+id/list"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
    
         />
    
     </LinearLayout>
    
  2. menu_rowview.xml

     <?xml version="1.0" encoding="utf-8"?>
           <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
        android:orientation="horizontal"
      android:id="@+id/linear"
             >
    
           <TextView
              android:id="@+id/textView1"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_marginBottom="10dp"
              android:layout_marginLeft="20dp"
              android:layout_marginRight="20dp"
              android:layout_marginTop="10dp"
              android:text="@android:string/unknownName"
              android:textAppearance="?android:attr/textAppearanceLarge" />
    
             </LinearLayout>
    
  3. 更改onCreateView()(在您的项目中)

      public View onCreateView(final LayoutInflater inflater, ViewGroup container,    Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.list, container);
    ListView v=(ListView) view.findViewById(R.id.list);
    v.setAdapter(new BaseAdapter() {
    
        public View getView(int position, View convertView, ViewGroup parent) {
            View rowView = null;
            if (convertView == null) {
                rowView = inflater.inflate(R.layout.menu_rowview, parent, false);
    
            }
            else
                rowView = convertView;
            LinearLayout lay=(LinearLayout) rowView.findViewById(R.id.linear);
            lay.setBackgroundColor(Color.MAGENTA);
            TextView textView = (TextView) rowView.findViewById(R.id.textView1);
            switch (position) {
            case 0: textView.setText("Random"); break;
            case 1: textView.setText("Community favourites"); break;
            case 2: textView.setText("Change image"); break;
            case 3: textView.setText("Share"); break;
            case 4: textView.setText("Informations"); break;
            }
    
            return rowView;
        }
    
        @Override public long getItemId(int arg0) { 
            return arg0; }
        @Override public Object getItem(int arg0) { return arg0; }
        @Override public int getCount() { return 5; }
    });
    return view;
    }
    

答案 1 :(得分:1)

android:minWidth="360dp"

上使用TextView

答案 2 :(得分:1)

在onCreate方法中使用此代码

getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);

答案 3 :(得分:0)

这个问题让我整天疯狂,这绝对是一个系统中的错误。我最终要做的就是我离开STYLE_NO_TITLE,因为我真的不想处理标题,我的其他对话格式主题是:

fragment.setStyle(DialogFragment.STYLE_NO_TITLE, R.style.Dialog);

这当然会在某些手机上带来问题,这不仅仅是背景问题,也是一个可触摸的领域。现在令人讨厌的hacky修复在我的项目xml布局中:

<?xml version="1.0" encoding="utf-8"?>
<TextView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:height="48dp"
    android:width="600dp"
    android:textSize="19sp"
    android:textColor="@color/blue"
    android:paddingLeft="16dp"
    android:gravity="center_vertical"
    />

硬编码宽度到大值是一个技巧,但我不太确定它如何影响lo-res设备的性能。在Kindle Fire,Nexus 7和2.2的仿真器上进行了测试 希望这会帮助某人