Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x12

问题

Hi I am developing application .My application run perfectly on all devices.But when we run this application on mdpi phone its getting me this error:

Caused by: java.lang.UnsupportedOperationException: Can't convert to dimension: type=0x12.

Kindly help me where i am wrong.

This is My Code:-

<RelativeLayout
    android:id="@+id/LevLayId"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:layout_marginTop="140dp" >

    <TextView
        android:id="@+id/totlScorId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:background="@drawable/score_timer"
        android:gravity="center"
        android:textColor="#ffffff" />

    <TextView
        android:id="@+id/levelId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:background="@drawable/score_timer"
        android:gravity="center"
        android:textColor="#ffffff" />
</RelativeLayout>

<RelativeLayout
    android:id="@+id/LayAboButId"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <LinearLayout
        android:id="@+id/option_last_row"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_marginBottom="7px"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/opt3Btn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/option_normal_new"
            android:gravity="center|center_vertical"
            android:textColor="#ffffff"
            android:textSize="11dp" />

        <Button
            android:id="@+id/opt4Btn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/option_normal"
            android:gravity="center|center_vertical"
            android:textColor="#ffffff"
            android:textSize="11dp" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/option_pre_row"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@id/option_last_row"
        android:layout_marginBottom="3px"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/opt1Btn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/option_normal_new"
            android:gravity="center|center_vertical"
            android:textColor="#ffffff"
            android:textSize="11dp" />

        <Button
            android:id="@+id/opt2Btn"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/option_normal"
            android:gravity="center|center_vertical"
            android:textColor="#ffffff"
            android:textSize="11dp" />
    </LinearLayout>
</RelativeLayout>

<RelativeLayout
    android:id="@+id/imgLayId"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginLeft="70dp"
    android:layout_marginRight="@id/totlScorId"
    android:layout_marginTop="70dp" >

    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true" />

    <ImageView
        android:id="@+id/imgViewId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true" />

    <ImageView
        android:id="@+id/imgViewframeId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:background="@drawable/photo_frame" />
</RelativeLayout>

回答1:

Use one Parent layout and Use below XML code instead of your code, it will solve your problem.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:android1="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <RelativeLayout
        android:id="@+id/LevLayId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginTop="140dp" >

        <TextView
            android:id="@+id/totlScorId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:background="@drawable/score_timer"
            android:gravity="center"
            android:textColor="#ffffff" />

        <TextView
            android:id="@+id/levelId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:background="@drawable/score_timer"
            android:gravity="center"
            android:textColor="#ffffff" />
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/LayAboButId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >

        <LinearLayout
            android:id="@+id/option_last_row"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_marginBottom="7px"
            android:orientation="horizontal" >

            <Button
                android:id="@+id/opt3Btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/option_normal_new"
                android:gravity="center|center_vertical"
                android:textColor="#ffffff"
                android:textSize="11dp" />

            <Button
                android:id="@+id/opt4Btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/option_normal"
                android:gravity="center|center_vertical"
                android:textColor="#ffffff"
                android:textSize="11dp" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/option_pre_row"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_above="@id/option_last_row"
            android:layout_marginBottom="3px"
            android:orientation="horizontal" >

            <Button
                android:id="@+id/opt1Btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/option_normal_new"
                android:gravity="center|center_vertical"
                android:textColor="#ffffff"
                android:textSize="11dp" />

            <Button
                android:id="@+id/opt2Btn"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/option_normal"
                android:gravity="center|center_vertical"
                android:textColor="#ffffff"
                android:textSize="11dp" />
        </LinearLayout>
    </RelativeLayout>

    <RelativeLayout
        android:id="@+id/imgLayId"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="70dp"
        android:layout_marginRight="@id/totlScorId"
        android:layout_marginTop="70dp" >

        <ProgressBar
            android:id="@+id/progressBar"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true" />

        <ImageView
            android:id="@+id/imgViewId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true" />

        <ImageView
            android:id="@+id/imgViewframeId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:background="@drawable/photo_frame" />
    </RelativeLayout>

</RelativeLayout>

回答2:

Just started getting this today, so spotted the change which led to it. In my case, it was because I've had to create a new layout directory layout-xhdpi for a new device. Now, the new device thinks it's "large" (ie. it was using the layouts in layout-large); but it's really xhdpi.

So in the new layout xml, file I added reference to a value from a values-large/dimens.xml

However, this doesn't work.

Creating values-xhdpi/dimens.xml with the referenced value in it, solved the problem.

TL;DR make sure that you have a values-XXXXX directories for each layout-XXXXX directory, and that all relevant values are in there. I believe that values applicable to all sizes will be found in values/dimens.xml, but that's not how my app is structured, so I can't prove it.

来源：https://stackoverflow.com/questions/13626102/caused-by-java-lang-unsupportedoperationexception-cant-convert-to-dimension