Hi,
The line:
View.inflate(FileBrowser.this, R.layout.icon, null);
Should be:
LayoutInflate.from(FileBrowser.this).inflate(R.layout.icon, parent, false);
You have to pass the parent so that the generated layout parameters
are of the right type. In the case of a GridView, it is also important
to pass false to the "attach to root" parameter so that the View is
not added directly to the parent (prevents a call to parent.addView.)
The latter is mandatory because GridView will add the View to itself
automatically after calling your getView() method.
On Tue, Dec 2, 2008 at 1:27 AM, CaseyB <[EMAIL PROTECTED]> wrote:
>
> I am trying to use a grid with a custom component but when I try to
> inflate the view I get the following exception:
>
> 12-02 04:18:07.790: ERROR/AndroidRuntime(1146): Uncaught handler:
> thread main exiting due to uncaught exception
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146):
> java.lang.ClassCastException: android.widget.AbsListView$LayoutParams
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.widget.LinearLayout.measureVertical(LinearLayout.java:323)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.widget.LinearLayout.onMeasure(LinearLayout.java:275)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.View.measure(View.java:6621)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.widget.GridView.onMeasure(GridView.java:937)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.View.measure(View.java:6621)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:2791)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.widget.FrameLayout.onMeasure(FrameLayout.java:208)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.View.measure(View.java:6621)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.widget.LinearLayout.measureVertical(LinearLayout.java:461)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.widget.LinearLayout.onMeasure(LinearLayout.java:275)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.View.measure(View.java:6621)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:2791)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.widget.FrameLayout.onMeasure(FrameLayout.java:208)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.View.measure(View.java:6621)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.ViewRoot.performTraversals(ViewRoot.java:620)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.view.ViewRoot.handleMessage(ViewRoot.java:1103)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.os.Handler.dispatchMessage(Handler.java:88)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.os.Looper.loop(Looper.java:123)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> android.app.ActivityThread.main(ActivityThread.java:3742)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> java.lang.reflect.Method.invokeNative(Native Method)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> java.lang.reflect.Method.invoke(Method.java:515)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
> (ZygoteInit.java:739)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:497)
> 12-02 04:18:08.030: ERROR/AndroidRuntime(1146): at
> dalvik.system.NativeStart.main(Native Method)
>
> Here is the code I am using to try to inflate the view:
>
> @Override
> public View getView(int index, View convertView, ViewGroup parent)
> {
> View iconLayout;
> ImageView icon;
> TextView fileName;
>
> if (convertView == null)
> {
> iconLayout = View.inflate(FileBrowser.this, R.layout.icon,
> null);
>
> icon = (ImageView)iconLayout.findViewById(R.id.Icon);
> icon.setScaleType(ImageView.ScaleType.FIT_CENTER);
> icon.setLayoutParams(new GridView.LayoutParams(50, 50));
>
> fileName = (TextView)iconLayout.findViewById(R.id.FileName);
> }
> else
> {
> iconLayout = convertView;
> icon = (ImageView)convertView.findViewById(R.id.Icon);
> fileName = (TextView)convertView.findViewById(R.id.FileName);
> }
>
> icon.setImageResource(getIcon(index));
> fileName.setText(mFiles.get(index).getName());
>
> return iconLayout;
> }
>
> and here is the layout file:
>
> <?xml version="1.0" encoding="utf-8"?>
> <LinearLayout
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> xmlns:android="http://schemas.android.com/apk/res/android";
> android:orientation="vertical"
> android:id="@+id/IconLayout">
>
> <ImageView
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:id="@+id/Icon"
> android:maxHeight="48px"
> android:maxWidth="48px"
> android:minHeight="48px"
> android:minWidth="48px" />
>
> <TextView
> android:layout_width="wrap_content"
> android:layout_height="wrap_content"
> android:id="@+id/FileName"
> android:maxLength="15"
> android:maxLines="1" />
> </LinearLayout>
>
> Does anyone know what is causing this exception?
> >
>
--
Romain Guy
www.curious-creature.org
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