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我解析图像 url 论坛 json 数组并添加它们 staggeredgridview 所以布局看起来像 pinterest :)

将方向空间切换到纵向或纵向到陆地空间我创建两个布局文件，其中一个是布局端口（它有 2 列），另一个是布局土地（它有 3 列）。

当我尝试将土地切换到端口时，它会正确更改，但端口会返回 ArrayIndexOutOfBoundsException

陆地空间

肖像

错误

    09-05 20:34:55.412: E/ViewRootImpl(26391): sendUserActionEvent() mView == null
09-05 20:35:00.182: E/dalvikvm(26391): The following issues were seen:
09-05 20:35:04.302: E/AndroidRuntime(26391): FATAL EXCEPTION: main
09-05 20:35:04.302: E/AndroidRuntime(26391): java.lang.ArrayIndexOutOfBoundsException: length=2; index=2
09-05 20:35:04.302: E/AndroidRuntime(26391):    at com.origamilabs.library.views.StaggeredGridView.populate(StaggeredGridView.java:965)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at com.origamilabs.library.views.StaggeredGridView.onLayout(StaggeredGridView.java:919)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.View.layout(View.java:14618)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewGroup.layout(ViewGroup.java:4491)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1021)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.View.layout(View.java:14618)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewGroup.layout(ViewGroup.java:4491)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at com.jeremyfeinstein.slidingmenu.lib.CustomViewAbove.onLayout(CustomViewAbove.java:476)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.View.layout(View.java:14618)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewGroup.layout(ViewGroup.java:4491)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1021)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.View.layout(View.java:14618)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewGroup.layout(ViewGroup.java:4491)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.View.layout(View.java:14618)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewGroup.layout(ViewGroup.java:4491)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1669)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1527)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.widget.LinearLayout.onLayout(LinearLayout.java:1440)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.View.layout(View.java:14618)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewGroup.layout(ViewGroup.java:4491)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.View.layout(View.java:14618)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewGroup.layout(ViewGroup.java:4491)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2191)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2005)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1218)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4975)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:791)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.Choreographer.doCallbacks(Choreographer.java:591)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.Choreographer.doFrame(Choreographer.java:561)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:777)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.os.Handler.handleCallback(Handler.java:725)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.os.Handler.dispatchMessage(Handler.java:92)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.os.Looper.loop(Looper.java:137)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at android.app.ActivityThread.main(ActivityThread.java:5279)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at java.lang.reflect.Method.invokeNative(Native Method)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at java.lang.reflect.Method.invoke(Method.java:511)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
09-05 20:35:04.302: E/AndroidRuntime(26391):    at dalvik.system.NativeStart.main(Native Method)

公共类 MainActivity 扩展 Activity {

private static final String TAG_CATEGORY = "catName";
private static final String TAG_ID = "id";
private static String categoryId;

// token ve tokenValue
static String Token = "token";
static String tokenValue = "********";

private static ArrayList<HashMap<String, String>> contactList;
private static String[] urlArray;

SlidingMenu menu;
jsonParser jsonParser;
JSONArray jArray;
ListView lvSiliding;
PARSEJSONCATEGORYCONTENT categoryContent;
PARSEJSONCATEGORY categoryName;

public static StaggeredGridView gridView;
Display display;

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

    display = ((WindowManager) getSystemService(WINDOW_SERVICE))
            .getDefaultDisplay();

    menu = new SlidingMenu(this);
    menu.setMode(SlidingMenu.LEFT);
    menu.setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN);
    menu.setShadowWidth(5);
    menu.setFadeDegree(0.0f);
    menu.attachToActivity(this, SlidingMenu.SLIDING_CONTENT);
    menu.setBehindWidth(400);
    menu.setMenu(R.layout.sliding_menu);

    jsonParser = new jsonParser();
    contactList = new ArrayList<HashMap<String, String>>();
    lvSiliding = (ListView) findViewById(R.id.listView_sliding_menu);

    gridView = (StaggeredGridView) MainActivity.this
            .findViewById(R.id.staggeredGridView1);

    categoryName = new PARSEJSONCATEGORY();
    categoryName.execute();

    categoryContent = new PARSEJSONCATEGORYCONTENT();
    categoryContent.execute("6");

    lvSiliding.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {

            categoryId = ((TextView) view.findViewById(R.id.categoryID))
                    .getText().toString();

            menu.toggle();

            Toast.makeText(getApplicationContext(), categoryId,
                    Toast.LENGTH_LONG).show();

            categoryContent = new PARSEJSONCATEGORYCONTENT();
            categoryContent.execute(categoryId);

        }
    });

}


    // parse sliding menu item
private class PARSEJSONCATEGORY extends AsyncTask<Void, Void, Void> {

    @Override
    protected Void doInBackground(Void... params) {
        String urlCatName = "******";

        jArray = jsonParser.getJSONFromUrltoCategoryName(urlCatName, Token,
                tokenValue);

        try {

            for (int i = 0; i < jArray.length(); i++) {
                JSONObject c = jArray.getJSONObject(i);

                // Storing each json item in variable
                String catName = c.getString(TAG_CATEGORY);
                String catID = c.getString(TAG_ID);

                Log.d("catName", catName);
                Log.d("catID", catID);

                // creating new HashMap
                HashMap<String, String> map = new HashMap<String, String>();

                // adding each child node to HashMap key => value
                map.put(TAG_CATEGORY, catName);
                map.put(TAG_ID, catID);

                // adding HashList to ArrayList
                contactList.add(map);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }

        return null;

    }

    @Override
    protected void onPostExecute(Void args) {

        ListAdapter adapter1 = new SimpleAdapter(MainActivity.this,
                contactList, R.layout.list_item, new String[] {
                        TAG_CATEGORY, TAG_ID }, new int[] {
                        R.id.categoryName, R.id.categoryID });
        lvSiliding.setAdapter(adapter1);

    }
}

    // parse girdView item
private class PARSEJSONCATEGORYCONTENT extends
        AsyncTask<String, Void, String[]> {

    protected String[] doInBackground(String... params) {

        String identifier = params[0];
        String urlCatContent = "*******";

        jArray = jsonParser.getJSONFromUrltoCategoryContent(urlCatContent,
                Token, tokenValue, identifier, "0", "10");

        List<String> list = new ArrayList<String>();
        try {

            // looping through All Contacts
            for (int i = 0; i < jArray.length(); i++) {
                JSONObject k = jArray.getJSONObject(i);

                // Storing each json item in variable
                String catName = k.getString("ipad_URL");

                Log.d("ipad_URL", catName);

                list.add(catName);
                urlArray = new String[list.size()];
                list.toArray(urlArray);

            }

            String arrayLenght = Integer.toString(urlArray.length);
            Log.d("arrayLenght", arrayLenght);

        } catch (JSONException e) {
            e.printStackTrace();
        }

        return urlArray;
    }

    protected void onPostExecute(String[] args) {

        int margin = getResources().getDimensionPixelSize(R.dimen.margin);

        gridView.setItemMargin(margin + 10); // set the GridView margin

        gridView.setPadding(margin + 10, margin + 10, margin + 10,
                margin + 10); // have the margin on the
        // sides as well

        StaggeredAdapter adapter = new StaggeredAdapter(MainActivity.this,
                R.id.imageView1, urlArray);

        gridView.setAdapter(adapter);
        adapter.notifyDataSetChanged();

        categoryContent.cancel(true);

    }

}

}

布局土地

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:staggered="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/black"
tools:context=".MainActivity" >

<com.origamilabs.library.views.StaggeredGridView
    android:id="@+id/staggeredGridView1"
    staggered:numColumns="3"
    staggered:drawSelectorOnTop="true"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

布局端口

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:staggered="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/black"
    tools:context=".MainActivity" >

    <com.origamilabs.library.views.StaggeredGridView
        android:id="@+id/staggeredGridView1"
        staggered:numColumns="2"
        staggered:drawSelectorOnTop="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" /> 

</RelativeLayout>
4

2 回答 2

1

看起来像and中的一个错误。它假定列数保持不变，而布局和纵向资源的列数不同。StaggeredGridView onSaveInstanceState()onRestoreInstanceState()

对你有好处，它是开源的，你可以修复它:)

作为一种快速的解决方法，您可以保持两个方向的列数相同，或者尝试调用setSaveEnabled(false)SGV，这样onSaveInstanceState()就不会被调用。

于 2013-09-05T18:14:09.167 回答
0

根据以下链接找到了解决方案：

屏幕方向更改后的 NullPointerException #16

将写下解决问题的步骤：

  • 导航到 Eclipse 中的 StaggeredGridView 库
  • 找到并打开 StaggeredGridView.java
  • 定位“填充”方法

  • 里面有一个for循环，用这个for循环替换它：

    for(int i = 0; i<colCount; i++){
    //final int offset =  top + ((mRestoreOffsets != null)? Math.min(mRestoreOffsets[i], 0) : 0);
    int offset = top;
    if((mRestoreOffsets != null) && mRestoreOffsets.length == colCount)
        offset +=  Math.min(mRestoreOffsets[i], 0);
    mItemTops[i] = (offset == 0) ? mItemTops[i] : offset;
    mItemBottoms[i] = (offset == 0) ? mItemBottoms[i] : offset;
}
  • 保存然后运行您的应用程序并享受;-)
于 2014-09-08T11:30:47.657 回答