android 开发中GridView中如何添加一张图片

Question

addview  最好是用HorizontalScrollView 里面含有一个线性布局，线性布局.addView(img)

Answer 1

大哥，你说的是在哪加addView，在xml里面吗
                        <GridView
                            android:id="@+id/grv_content"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:horizontalSpacing="1sp"
                            android:verticalSpacing="1sp"
                            android:numColumns="6"
                            android:fadeScrollbars="true"
                            android:background="@drawable/sns_shoot_add_bg"
                            android:gravity="center">
                            
                        </GridView>
还是在java文件中
//初始化添加多张图片组件
grv_content = (GridView)findViewById(R.id.grv_content);
adapter = new ImageAdapter(this, datas);
grv_content.setAdapter(adapter);//图片就是这样加载到gridview里面的
//注册grv_content监听
        registerListener();

Answer 2

把添加的view看做你的item加进去就可以了

Answer 3

有木有类似的demo给发个链接，学习一下。

Answer 4

我帮你做了个动态向GridView添加图片的APK  需要的话可以M我想怎么添加就怎么添加

Answer 5

xml配置如下：
<RelativeLayout
                    android:id="@+id/photo_post_select_grid_frame"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="10dp"
                    android:layout_marginRight="10dp"
                    android:layout_marginTop="10dp" >                    <com.gf.component.widget.ExtendGridView
                        android:id="@+id/photo_post_select_grid"
                        android:layout_width="fill_parent"
                        android:layout_height="wrap_content"
                        android:background="@drawable/gf_inputbox_upload_pic"
                        android:fadingEdge="none"
                        android:gravity="center"
                        android:horizontalSpacing="4dip"
                        android:listSelector="@color/transparent"
                        android:padding="10dip"
                        android:scrollbarStyle="insideOverlay"
                        android:scrollbarThumbVertical="@drawable/gf_scrollbar"
                        android:scrollingCache="false"
                        android:stretchMode="columnWidth"
                        android:verticalSpacing="4dip"
                        gf:stretchable="true" />
                </RelativeLayout>
其中ExtendGridView实现如下
public class ExtendGridView extends GridView {    private int mHorizontalSpacing;
    private int mVerticalSpacing;
    private int mNumColumns;    private boolean mStretchable;
    private boolean mPenetrateTouch;    private int mScreenWidth, mScreenHeight;    public ExtendGridView(Context context) {
        this(context, null);
    }    public ExtendGridView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }    public ExtendGridView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.GridView);
        mStretchable = a.getBoolean(R.styleable.GridView_stretchable, false);
        mPenetrateTouch = a.getBoolean(R.styleable.GridView_penetrateTouch, false);
        a.recycle();        init();
    }    @Override
    public void setHorizontalSpacing(int horizontalSpacing) {
        super.setHorizontalSpacing(horizontalSpacing);
        mHorizontalSpacing = horizontalSpacing;
    }    public int getHorizontalSpacing() {
        return mHorizontalSpacing;
    }    @Override
    public void setVerticalSpacing(int verticalSpacing) {
        super.setVerticalSpacing(verticalSpacing);
        mVerticalSpacing = verticalSpacing;
    }    public int getVerticalSpacing() {
        return mVerticalSpacing;
    }    @Override
    public void setNumColumns(int numColumns) {
        super.setNumColumns(numColumns);
        mNumColumns = numColumns;
    }    public int getNumColumns() {
        return mNumColumns;
    }    public void setStretchable(boolean stretchable) {
        if (mStretchable != stretchable) {
            mStretchable = stretchable;
            requestLayout();
        }
    }    public boolean isStretchable() {
        return mStretchable;
    }    public void setPenetrateTouch(boolean penetrate) {
        mPenetrateTouch = penetrate;
    }    public boolean isPenetrateTouch() {
        return mPenetrateTouch;
    }    public int computeItemWidth() {
        int width = getWidth() > 0 ? getWidth() : getMeasuredWidth();
        // use screen width as max width.
        if (width <= 0) width = mScreenWidth;
        int horizontalSpace = getHorizontalSpacing();
        int horizontalPadding = getPaddingLeft() + getPaddingRight();
        int columnsNum = getNumColumns();        int itemSize = (width - horizontalPadding - (columnsNum - 1) * horizontalSpace) / columnsNum;
        if (itemSize < 0) {
            return LayoutParams.WRAP_CONTENT;
        }        return itemSize;
    }    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        final boolean stretchable = mStretchable;
        if (stretchable) {
            heightMeasureSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
        }
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }    @TargetApi(Build.VERSION_CODES.FROYO)
@Override
    protected void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        updateScreenSize();
    }    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        // final int action = ev.getAction();
        final int x = (int) ev.getX();
        final int y = (int) ev.getY();
        int motionPosition = pointToPosition(x, y);
        if (mPenetrateTouch && motionPosition < 0) {
            return false;
        }
        return super.onTouchEvent(ev);
    }    private void init() {
        updateScreenSize();
    }    private void updateScreenSize() {
        Display display = ((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
        mScreenWidth = display.getWidth();
        mScreenHeight = display.getHeight();
    }
}
然后接下来是我们的主代码
viewGridView = (ExtendGridView) findViewById(R.id.photo_post_select_grid);
viewGridView.setNumColumns(GRID_COLUMN_COUNT);
viewGridView
.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if (adapter.isExtra(position)) {
if (getSelectedImageList().size() < getMaxPhotoCnt()) {
showSelectImageDialog();
}
} else {
// 大图预览
onClickPhotoPreview(viewGridView, position,
getSelectedImageList());
}
}
});

Answer 6

GridView里面根本没有addView这个方法，你可以查一查API

Answer 7

gridview 的item（这个是一个view），怎么会没有addview的方法

Answer 8

谁有demo，求 发份啊。 谢谢[email protected]

Answer 9

demo 有个，我不是有下载链接么，那个还是比人在论坛要的我上传到资源里了啊http://download.csdn.net/detail/qq153843338/6674245