Question

我正在实现自定义线性布局在此添加更多视图使用后台进程中的webservices检索数据库所有数据都是反向消息和消息相关的userimages也首先在自定义线性布局中逐个加载图像后初始加载消息

main.xml中

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout android:id="@+id/frameLayout1" android:layout_width="fill_parent" android:background="@android:color/white"
xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="fill_parent">
    <ScrollView android:id="@+id/scrollView1" android:layout_height="wrap_content" android:layout_width="fill_parent">
        <LinearLayout android:layout_width="fill_parent" android:id="@+id/linearLayout2" android:layout_height="fill_parent">
            <LinearLayout android:layout_width="fill_parent" android:id="@+id/linearLayout3" android:layout_height="fill_parent">
                <ImageView android:id="@+id/person" android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>
                <TextView android:textColor="@android:color/black" android:id="@+id/textView1" android:layout_height="wrap_content" android:layout_width="wrap_content"></TextView>
            </LinearLayout>
        </LinearLayout>
    </ScrollView>
</FrameLayout>

的CodeFile：

public class MYlist extends Activity 
{
    /** Called when the activity is first created. */
    List<MessageClass> messages;
    int i=0,n=5;
     ParseXMLString parse=new ParseXMLString();
     DataParsingComm dataparsing=new DataParsingComm();
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        String xml="<spGetUserMessages><SearchLocation></SearchLocation><LoginUserID>125</LoginUserID></spGetUserMessages>";
        messages =parse.GetGetUserMessages(dataparsing.ILGetUserMessages(xml));


        addElements(messages,i,n);
    }

    protected void addElements(final List<MessageClass> messages2,int i,int n) 
    {
        int k=0;
     //((LinearLayout)findViewById(R.id.linearLayout1)).removeAllViews();

        for(int i1=i;i1<n;i1++)
        {
            LinearLayout ll1=((LinearLayout)findViewById(R.id.linearLayout2));
            ll1.setBackgroundResource(R.drawable.tabmessage);
            Log.v("11111111","333"+ i1+ n);
          if(k==i1)
          {
            for(int j1=i1;j1<n;j1++)
            {

            TextView msg=((TextView)findViewById(R.id.textView1));
            msg.setText(messages2.get(j1).getmessage());

            }
          }
            ImageView prsnImg=((ImageView)findViewById(R.id.person));
        try{
            String photoXml="<spGetUserPhoto><UserID>125</UserID></spGetUserPhoto>";

            String photoInfoFromDB=new DataParsingComm().ILGetImage(photoXml);

            if(photoInfoFromDB.equalsIgnoreCase("anyType{}")||photoInfoFromDB.equals(null) )
            {
                prsnImg.setImageResource(R.drawable.person);
            }
            else{

                byte[] imgArry= Base64.decode(photoInfoFromDB);

                Bitmap bit=BitmapFactory.decodeByteArray(imgArry,0,imgArry.length);

                prsnImg.setImageBitmap(bit);
            }
        }catch (Exception e) {
            e.printStackTrace();
        }
        finally
            {
                System.gc();
                System.runFinalization();
            }

        }

    }
}

屏幕截图：http://www.freeimagehosting.net/uploads/8437c22cca.png

我的问题是每次显示一项所有数据覆盖布局中的单项视图如何在线性布局中逐一实现显示视图

请事先告诉我一些解决方案

Answer 1

那是因为你总是选择相同的两个对象......

有一种非常基本的方法可以获得我认为你可能想要的东西：

main.xml中

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/frameLayout1" 
    android:layout_width="fill_parent" 
    android:background="@android:color/white" 
    android:layout_height="fill_parent">
    <ScrollView android:id="@+id/scrollView1" 
        android:layout_height="wrap_content" 
        android:layout_width="fill_parent">

    </ScrollView>
</FrameLayout>

的.java

public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        ScrollView scrollView = (ScrollView) findViewById(R.id.scrollView1);

        LinearLayout topLinearLayout = new LinearLayout(this);
        topLinearLayout.setOrientation(LinearLayout.VERTICAL); 

        for (int i = 0; i < 15; i++){

            LinearLayout linearLayout = new LinearLayout(this);
            linearLayout.setOrientation(LinearLayout.HORIZONTAL); 

            ImageView imageView = new ImageView (this);
            TextView textView = new TextView (this);

            imageView.setImageResource(R.drawable.image);
            textView.setText("Text View #" + i);

            linearLayout.addView(imageView);
            linearLayout.addView(textView);

            topLinearLayout.addView(linearLayout);          

        }

        scrollView.addView(topLinearLayout);

    }

您还可以在xml文件中定义topLinearLayout对象。这取决于你。

如何实现在android中实现scrollview的动态布局中添加更多视图

1 个答案: