Question

我想开发这样的应用程序。这与android gallery完全一样。所以我尝试了HorizontalScrollView。但我仍然面临一些问题

enter image description here

这是我的布局。

<ImageView 
    android:id="@+id/main"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_above="@+id/hScrollView"/>

<HorizontalScrollView
android:id="@+id/hScrollView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" >

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

    </LinearLayout>

</HorizontalScrollView>

这是我的代码

LinearLayout image;
ImageView main;

ImageView[] iv=new ImageView[images.length];
int i;

和活动，

for(i=0;i<images.length;i++)
    {
        iv[i]=new ImageView(this);

        LinearLayout.LayoutParams lparams = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT,
                LinearLayout.LayoutParams.WRAP_CONTENT);
        iv[i].setLayoutParams(lparams);
        iv[i].setImageResource(images[i]);

        iv[i].setTag(images[i]);

        image.addView(iv[i]);

        iv[i].setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                main.setImageResource((Integer) iv[i].getTag());    
            }
        });

但总是给我ArrayIndexOutOfBoundException。我知道每次迭代都会更新i的值。那我该怎么办？任何替代方式都是可观的。

我使用的是api等级18，因此Gallery无效。

Answer 1

你可以像这样使用：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#fff"
    android:orientation="horizontal"
    android:padding="5dp" >

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/ic_launcher" />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:scrollbars="horizontal" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal" >

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/ic_launcher" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/ic_launcher" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/ic_launcher" />
        </LinearLayout>
    </ScrollView>

</RelativeLayout>

Answer 2

试试这个..

<强> XML：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/LinearLayout01"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >



    <ImageView
        android:id="@+id/ImageView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

     <Gallery
        android:id="@+id/examplegallery"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

<强> JAVA

 private Integer[] Imgid = {

        R.drawable.a_1, R.drawable.a_2, R.drawable.a_3, R.drawable.a_4, R.drawable.a_5, R.drawable.a_6, R.drawable.a_7

};

 ImageView imgView = (ImageView)findViewById(R.id.ImageView01);
imgView.setImageResource(Imgid[0]);

Gallery gallery = (Gallery) findViewById(R.id.examplegallery);
gallery.setAdapter(new AddImgAdp(this));

gallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
imgView.setImageResource(Imgid[position]);
}
});

参考：

http://saigeethamn.blogspot.in/2010/05/gallery-view-android-developer-tutorial.html

http://learnandroideasily.blogspot.in/2013/07/android-gallery-view-example.html

http://www.androidpeople.com/android-gallery-imageview-example

http://www.androidhive.info/2013/09/android-fullscreen-image-slider-with-swipe-and-pinch-zoom-gestures/

Answer 3

请注意： android.widget.Gallery不再受支持。其他水平滚动小部件包括支持库中的HorizontalScrollView和ViewPager。

根据您的要求，HorizontalScrollView更合适。查看以下教程，它将帮助您实施。

Implement HorizontalScrollView like GalleryView

Answer 4

试试这个：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >

<ImageView
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_above="@+id/hScrollView"
    android:background="@drawable/ic_launcher" />

<HorizontalScrollView
    android:id="@+id/hScrollView"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true" >

    <LinearLayout
        android:id="@+id/linearLayout"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >
    </LinearLayout>
</HorizontalScrollView>

</RelativeLayout>

在Activity类中：

int[] drawable = { R.drawable.background, R.drawable.forground,
        R.drawable.ic_launcher, R.drawable.ic_launcher,
        R.drawable.ic_launcher, R.drawable.ic_launcher };

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    centerImageView = (ImageView) findViewById(R.id.imageView);

    LinearLayout linearLayout = (LinearLayout) findViewById(R.id.linearLayout);
    for (int i = 0; i < drawable.length; i++) {
        LinearLayout.LayoutParams lparams = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.WRAP_CONTENT,
                LinearLayout.LayoutParams.WRAP_CONTENT);
        ImageView view = new ImageView(this);
        view.setLayoutParams(lparams);
        view.setId(i);
        view.setImageResource(drawable[i]);
        linearLayout.addView(view);

        view.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                        centerImageView.setImageResource(drawable[v.getId()]);
            }
        });

    }
}

希望能帮助你：）

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