CollapsingToolbarLayout crash on 4.4 devices (java.lang.IllegalArgumentException: radius must be > 0)

Question

CollapsingToolbarLayout crash on 4.4 devices (java.lang.IllegalArgumentException: radius must be > 0)

Boo*_*ger 14 android android-toolbar androiddesignsupport

I have implemented the new style Collapsible Toolbar. I am using the same code as the example (Cheesesquare) demo app - which of course works fine on all devices. I need help figuring out what I am doing different then the sample (so my app won't crash).

My app runs great on 5.0+ devices, but crashes on older devices (OS 4.4.4) with an error that I can't isolate to my code (no references to my project's classes in the stack). Seems so strange to me that this is device specific (if this was a code error, it would crash everywhere)

I have (tried, but didn't help):

looked through all my XML and Java to ensure I am not setting a 0 as any dimension on any view
Ensured I am not setting padding anywhere
Removed ALL margins (just to check - didn't help, added back)
Removed all my setBackground() methods (no help)
Removed all elevation and radius attributes
Setting ALL CardViews to Visibility.GONE (still crashes even with all CardViews no being drawn)

The crash is coming from a class in AOSP: https://android.googlesource.com/platform/frameworks/support/+/master/v7/cardview/eclair-mr1/android/support/v7/widget/RoundRectDrawableWithShadow.java

I see a related Bug opened (but not assigned): https://code.google.com/p/android/issues/detail?id=157919 Interestingly, this bug states this doesn't crash on 4.3, but I don't have that device handy.

Suggestions about how I can debug the cause of this crash?:

E/AndroidRuntime(  708): java.lang.IllegalArgumentException: radius must be > 0
E/AndroidRuntime(  708):    at android.graphics.RadialGradient.<init>(RadialGradient.java:53)
E/AndroidRuntime(  708):    at android.support.v7.widget.RoundRectDrawableWithShadow.buildShadowCorners(RoundRectDrawableWithShadow.java:285)
E/AndroidRuntime(  708):    at android.support.v7.widget.RoundRectDrawableWithShadow.buildComponents(RoundRectDrawableWithShadow.java:307)
E/AndroidRuntime(  708):    at android.support.v7.widget.RoundRectDrawableWithShadow.draw(RoundRectDrawableWithShadow.java:209)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15493)
E/AndroidRuntime(  708):    at android.widget.FrameLayout.draw(FrameLayout.java:472)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14402)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14397)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15511)
E/AndroidRuntime(  708):    at android.widget.FrameLayout.draw(FrameLayout.java:472)
E/AndroidRuntime(  708):    at android.support.v4.widget.NestedScrollView.draw(NestedScrollView.java:1679)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14402)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.support.design.widget.CoordinatorLayout.drawChild(CoordinatorLayout.java:1040)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14397)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15511)
E/AndroidRuntime(  708):    at android.widget.FrameLayout.draw(FrameLayout.java:472)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14402)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14397)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14397)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14397)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15222)
E/AndroidRuntime(  708):    at android.view.ViewGroup.drawChild(ViewGroup.java:3340)
E/AndroidRuntime(  708):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:3176)
E/AndroidRuntime(  708):    at android.view.View.draw(View.java:15511)
E/AndroidRuntime(  708):    at android.widget.FrameLayout.draw(FrameLayout.java:472)
E/AndroidRuntime(  708):    at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2623)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14402)
E/AndroidRuntime(  708):    at android.view.View.getDisplayList(View.java:14444)
E/AndroidRuntime(  708):    at android.view.HardwareRenderer$GlRenderer.buildDisplayList(HardwareRenderer.java:1597)
E/AndroidRuntime(  708):    at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:1469)
E/AndroidRuntime(  708):    at android.view.ViewRootImpl.draw(ViewRootImpl.java:2800)
E/AndroidRuntime(  708):    at android.view.ViewRootImpl.performDraw(ViewRootImpl.java:2666)
E/AndroidRuntime(  708):    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2234)
E/AndroidRuntime(  708):    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1267)
E/AndroidRuntime(  708):    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6638)
E/AndroidRuntime(  708):    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:813)
E/AndroidRuntime(  708):    at android.view.Choreogra

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My activity:

public class PaymentActivity extends AppCompatActivity {
    public static final String XTRA_DEVICENAME = "";
    private static String deviceName;
    private ItemDto deviceDto;
    private Activity mActivity;

    private OkHttpClient okclient;

    //Views
    private RelativeLayout infoLayout;
    private TextView deviceOwner;
    private TextView devicePrice;
    private TextView deviceInfo;
    private TextView payDurationTitle;
    private TextView payPriceTitle;
    private TextView payDurationText;
    private TextView payPriceText;
    private Button upBtn;
    private Button downBtn;
    private TextView incText;
    private View incrDivider;
    private FloatingActionButton fab;
    private ProgressBar devInfoProgress;
    private LinearLayout incrBtnView;

    private int mIterVal = 1;

    private Constants.ColorInfo colorTheme = Constants.ColorInfo.GREY;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mActivity = this;

        Intent intent = getIntent();
        deviceName = intent.getStringExtra(XTRA_DEVICENAME);

        setTheme(ColorUtil.getThemeForDevice(deviceName));
        colorTheme = ColorUtil.getColorTheme(deviceName);
        setContentView(R.layout.act_payment);

        final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onBackPressed();
            }
        });

        okclient = new OkHttpClient();

        CollapsingToolbarLayout collapsingToolbar =
                (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
        collapsingToolbar.setTitle(deviceName.toUpperCase());

        okclient = new OkHttpClient();

        final ImageView imageView = (ImageView) findViewById(R.id.backdrop);
        // todo get better default image
        final String paymentIconUrl = "http://xxx/" + deviceName + "_lg.png";

        Glide.with(mActivity)
                .load(paymentIconUrl)
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .placeholder(R.drawable.ic_logo_allwhite)
                .error(R.drawable.ic_logo_allwhite)
                .into(imageView);

        setupViews();
        new GetItemInfoTask().execute(deviceName);
    }

    private void setupViews() {
        infoLayout = (RelativeLayout) findViewById(R.id.device_info_layout);
        infoLayout.setBackgroundColor(getResources().getColor(ColorUtil.getDeviceColor(deviceName, ColorUtil.COLOR_SECONDARY)));

        incrBtnView = (LinearLayout) findViewById(R.id.incr_btn_view);
        deviceOwner = (TextView) findViewById(R.id.info_owner);
        devicePrice = (TextView) findViewById(R.id.info_price);
        deviceInfo = (TextView) findViewById(R.id.info_max_amount);
        payDurationTitle = (TextView) findViewById(R.id.paidDurationTitle);
        payPriceTitle = (TextView) findViewById(R.id.paidAmountTitle);
        payDurationText = (TextView) findViewById(R.id.paidDurationText);
        payPriceText = (TextView) findViewById(R.id.paidAmountText);

        devInfoProgress = (ProgressBar) findViewById(R.id.devinfo_progress);
        devInfoProgress.getIndeterminateDrawable().setColorFilter(getResources().getColor(R.color.card_white), android.graphics.PorterDuff.Mode.MULTIPLY);

        Drawable tmpDrawable = ColorUtil.getTintedDrawable(mActivity, R.drawable.ic_attach_money, colorTheme.getSecondary());
        payPriceTitle.setCompoundDrawablesWithIntrinsicBounds(tmpDrawable, null, null, null);

        Drawable tmpDrawable2 = ColorUtil.getTintedDrawable(mActivity, R.drawable.ic_clock, colorTheme.getSecondary());
        payDurationTitle.setCompoundDrawablesWithIntrinsicBounds(tmpDrawable2, null, null, null);

        upBtn = (Button) findViewById(R.id.pay_inc_up_btn);
        downBtn = (Button) findViewById(R.id.pay_inc_down_btn);
        incText = (TextView) findViewById(R.id.pay_inc_text);
        incrDivider = (View) findViewById(R.id.iter_divider);

        upBtn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                ...
            }
        });
        downBtn.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {
                ...
            }
        });

        upBtn.setBackground(mActivity.getResources().getDrawable(colorTheme.getSelectorId()));
        downBtn.setBackground(mActivity.getResources().getDrawable(colorTheme.getSelectorId()));

        fab = (FloatingActionButton) findViewById((R.id.pay_fab_btn));
        //TODO - manually coloring FAB, should do with color state list
        fab.setEnabled(false);
        fab.setBackgroundTintList(ColorStateList.valueOf(getResources().getColor(R.color.grey_300)));

        fab.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                fab.setBackgroundTintList(ColorStateList.valueOf(getResources().getColor(R.color.card_white)));
                ...

            }
        });

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_payment, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }


    private class GetItemInfoTask extends AsyncTask<String, Void, String> {
        @Override
        protected String doInBackground(String... params) {
            ...

            return null;
        }

        @Override
        protected void onPostExecute(String result) {
        ...

        }

        @Override
        protected void onPreExecute() {
            devInfoProgress.setVisibility(View.VISIBLE);
        }

        @Override
        protected void onProgressUpdate(Void... values) {

        }
    }

}

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My Layout.xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:card_view="http://schemas.android.com/tools"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="@dimen/payments_backdrop_height"
        android:fitsSystemWindows="true"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginEnd="64dp"
            app:expandedTitleMarginStart="48dp"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

            <ImageView
                android:id="@+id/backdrop"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fitsSystemWindows="true"
                android:scaleType="centerCrop"
                android:transitionName="device_img"
                app:layout_collapseMode="parallax" />

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="pin"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/grey_200"
            android:orientation="vertical">

            <RelativeLayout
                android:id="@+id/device_info_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/info_owner"
                    style="@style/DeviceInfo" />

                <TextView
                    android:id="@+id/info_price"
                    style="@style/DeviceInfo"
                    android:layout_below="@+id/info_owner"/>

                <TextView
                    android:id="@+id/info_max_amount"
                    style="@style/DeviceInfo"
                    android:layout_below="@+id/info_price"
                    android:layout_marginBottom="@dimen/grid1" />

                <ProgressBar
                    android:id="@+id/devinfo_progress"
                    style="?android:attr/progressBarStyleLarge"
                    android:layout_width="@dimen/rythm48"
                    android:layout_height="@dimen/rythm48"
                    android:layout_toRightOf="@+id/info_price"
                    android:layout_marginRight="@dimen/grid5"
                    android:layout_marginTop="@dimen/grid1"
                    android:visibility="gone" />

           </RelativeLayout>

            <android.support.v7.widget.CardView
                android:id="@+id/device_info_card"
                style="@style/CardView"
                card_view:cardCornerRadius="4dp"
                card_view:cardElevation="6dp">

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

                    <TextView
                        android:id="@+id/launch_title"
                        style="@style/CardTitle"
                        android:text="Current Amounts" />

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_below="@+id/confirm_text"
                        android:layout_marginBottom="@dimen/grid5"
                        android:orientation="horizontal"
                        android:weightSum="2">

                        <LinearLayout
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_weight="1"
                            android:gravity="center"
                            android:orientation="vertical">

                            <TextView
                                android:id="@+id/paidAmountTitle"
                                style="@style/TextAppearance.AppCompat.Medium"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:drawableLeft="@drawable/ic_dollar"
                                android:gravity="center"
                                android:text="@string/paid_amount_title" />

                            <TextView
                                android:id="@+id/paidAmountText"
                                style="@style/TextAppearance.AppCompat.Headline"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content" />

                        </LinearLayout>

                        <LinearLayout
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_weight="1"
                            android:gravity="center"
                            android:orientation="vertical">

                            <TextView
                                android:id="@+id/paidDurationTitle"
                                style="@style/TextAppearance.AppCompat.Medium"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:drawableLeft="@drawable/ic_clock"
                                android:gravity="center"
                                android:text="@string/paid_duration_title" />

                            <TextView
                                android:id="@+id/paidDurationText"
                                style="@style/TextAppearance.AppCompat.Headline"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content" />

                        </LinearLayout>
                    </LinearLayout>

                    <View
                        android:id="@+id/iter_divider"
                        android:layout_width="wrap_content"
                        android:layout_height="1dp"
                        android:layout_marginBottom="@dimen/grid2"
                        android:layout_marginTop="@dimen/grid_5"
                        android:background="@color/grey_400"
                        android:visibility="gone"/>

                    <LinearLayout
                        android:id="@+id/incr_btn_view"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_marginBottom="@dimen/grid5"
                        android:layout_marginLeft="@dimen/grid4"
                        android:layout_marginRight="@dimen/grid4"
                        android:orientation="horizontal"
                        android:gravity="center"
                        android:weightSum="3"
                        android:visibility="gone">

                        <Button
                            android:id="@+id/pay_inc_down_btn"
                            style="@style/InfoButton"
                            android:layout_width="@dimen/rythm48"
                            android:layout_height="@dimen/rythm48"
                            android:text="-"
                            android:textSize="32sp"
                            android:layout_weight="1"/>

                        <TextView
                            android:id="@+id/pay_inc_text"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:text="1"
                            android:gravity="center"
                            android:layout_marginRight="@dimen/grid2"
                            android:layout_marginLeft="@dimen/grid2"
                            android:textSize="24sp"
                            android:layout_weight="1"/>

                        <Button
                            android:id="@+id/pay_inc_up_btn"
                            style="@style/InfoButton"
                            android:layout_width="@dimen/rythm48"
                            android:layout_height="@dimen/rythm48"
                            android:text="+"
                            android:textSize="32sp"
                            android:layout_weight="1"/>

                    </LinearLayout>
                </LinearLayout>

            </android.support.v7.widget.CardView>

            <android.support.v7.widget.CardView
                android:id="@+id/provider_card_view"
                style="@style/CardView"
                card_view:cardCornerRadius="4dp"
                card_view:cardElevation="6dp">

                <fragment
                    android:id="@+id/provider_fragment"
                    android:name="com.cleartoken.pay.ui.frag.ProviderFragment"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content" />

            </android.support.v7.widget.CardView>

            <android.support.v7.widget.CardView
                style="@style/CardView"
                card_view:cardCornerRadius="4dp"
                card_view:cardElevation="6dp">

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

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="Info"
                        android:textAppearance="@style/TextAppearance.AppCompat.Title" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="@string/long_text" />
                </LinearLayout>
            </android.support.v7.widget.CardView>
        </LinearLayout>
    </android.support.v4.widget.NestedScrollView>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/pay_fab_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/grid2"
        android:clickable="true"
        android:src="@drawable/ic_fab_enabled"
        app:borderWidth="0dp"
        app:layout_anchor="@id/device_info_card"
        app:layout_anchorGravity="bottom|right|end" />

</android.support.design.widget.CoordinatorLayout>

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The CardView style.xml snippet:

<style name="CardView">
    <item name="android:layout_width">match_parent</item>
    <item name="android:layout_height">wrap_content</item>
    <item name="android:layout_gravity">center</item>
    <item name="android:layout_margin">@dimen/grid1</item>
</style>

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Note:

我普遍使用相同的卡片风格.在第1法案中,这有效*(法案#1没有协调员布局的巨大差异).

我的卡XML看起来像普遍这样:

 <android.support.v7.widget.CardView
            android:id="@+id/device_info_card"
            style="@style/CardView"
            card_view:cardCornerRadius="4dp"
            card_view:cardElevation="6dp">

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Answer 1

Tob*_*dae 5

在堆栈错误中,有一件事对我很突出.它似乎在4.4及以下,你的应用程序试图绘制一个大于实际手机宽度的gui.RadialGradient错误对我来说没有意义,因为它应该大于屏幕大小而不是小于零.

/** Create a shader that draws a radial gradient given the center and radius.
    @param centerX  The x-coordinate of the center of the radius
    @param centerY  The y-coordinate of the center of the radius
    @param radius   Must be positive. The radius of the circle for this gradient.
    @param colors   The colors to be distributed between the center and edge of the circle
    @param stops    May be <code>null</code>. Valid values are between <code>0.0f</code> and
                    <code>1.0f</code>. The relative position of each corresponding color in
                    the colors array. If <code>null</code>, colors are distributed evenly
                    between the center and edge of the circle.
    @param tileMode The Shader tiling mode
*/
public RadialGradient(float centerX, float centerY, float radius,
           @NonNull int colors[], @Nullable float stops[], @NonNull TileMode tileMode) {
    if (radius <= 0) {
        throw new IllegalArgumentException("radius must be > 0");
    }
    if (colors.length < 2) {
        throw new IllegalArgumentException("needs >= 2 number of colors");
    }
    if (stops != null && colors.length != stops.length) {
        throw new IllegalArgumentException("color and position arrays must be of equal length");
    }
    mType = TYPE_COLORS_AND_POSITIONS;
    mX = centerX;
    mY = centerY;
    mRadius = radius;
    mColors = colors;
    mPositions = stops;
    mTileMode = tileMode;
    init(nativeCreate1(centerX, centerY, radius, colors, stops, tileMode.nativeInt));
}

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这是来自radialgradient类的片段.强制代码运行的一种方法是简单地编辑radialgradient类,如果你能做到这一点(Android Studio有办法做到这一点).

我对这个问题的解决方案是首先浏览你的xml文件并开始删除不常见/没有意义的代码行.喜欢:

android:fitsSystemWindows="true"

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fitSystemWindow多次调用

您应该避免的另一件事是线性布局的权重和重量标签.并尝试使您的父窗口小部件成为RelativeLayout.

编辑:

经过一段时间的思考(仅2分钟),我意识到错误可能只是由于styles.xml的实现.你确定你复制了你在git repo中看到的所有文件夹吗？

有时,当发生此错误时,通常是因为values-v21文件夹未添加相应的styles.xml.

因此,如果您没有values-v21文件夹,请执行以下操作: - 在res文件夹下创建values-v21文件夹. - 然后在values-v21文件夹下创建styles.xml文件夹并添加此代码.

<resources>

<style name="Theme.DesignDemo" parent="Base.Theme.DesignDemo">
    <item name="android:windowDrawsSystemBarBackgrounds">true</item>
    <item name="android:statusBarColor">@android:color/transparent</item>
</style>

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Answer 2

Boo*_*ger 3

对于未来的人，我发现了我的问题 - 我使用的样式与框架使用的另一个样式（CardView）具有相同的名称。

我将 styles.xml 文件中的名称更改为其他名称（MyCardView），然后崩溃就消失了。

事后看来，我使用这个通用名称导致了回归。

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