Crash when BlurLayout is 0dp height.

[drakeet]

My xml in this part is roughly like this:

 <com.daimajia.androidviewhover.BlurLayout
        android:id="@+id/blur_layout"
        android:layout_width="wrap_content"
        android:layout_height="0dp"
        android:layout_weight="1">

        <FrameLayout
            android:id="@+id/fragment_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            />
    </com.daimajia.androidviewhover.BlurLayout>

And I want to through the menu key to showHover (), the results originally expected is this: I press the Menu key, then Hover out, covering my entire FrameLayout. The result is not, and the error (key information) as follows:

Caused by: java.lang.NullPointerException
            at com.daimajia.androidviewhover.tools.Blur.apply(Blur.java:19)
            at com.daimajia.androidviewhover.tools.Blur.apply(Blur.java:15)
            at com.daimajia.androidviewhover.BlurLayout.addBlurImage(BlurLayout.java:178)
            at com.daimajia.androidviewhover.BlurLayout.hover(BlurLayout.java:119)
            at com.daimajia.androidviewhover.BlurLayout.showHover(BlurLayout.java:105)
            at com.daimajia.androidviewhover.BlurLayout.toggleHover(BlurLayout.java:164)
            at me.drakeet.testhover.ui.MainActivity.onCreate(MainActivity.java:85)
            at android.app.Activity.performCreate(Activity.java:5242)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2151)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2236)
            at android.app.ActivityThread.access$800(ActivityThread.java:138)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1199)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5034)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)

So ask: under BlurLayout in the layout file has one and only ImageView? I put a FrameLayout, and want the buttons to control Hover‘s toggle, but it seems not, could help? Thank you very much!

[daimajia]

Because you set BlurLayout 0dp height, it can get blur image from a 0 dp height view.

You have to set BlurLayout height larger than 0dp height.

[drakeet]

I have changed the "0dp" to "wrap_content", but it still crashes. And, the error message is the same.

[daimajia]

The FrameLayout is 0dp, although you set BlurLayout wrap_content, it still 0dp.

You can set a exact value, for example 200dp, have a try.

[drakeet]

"200dp" still crashes, and the error message is the same.

[daimajia]

Ok, I think I know the reason. Could you tell me the Android version you are testing?

[drakeet]

compileSdkVersion 20 buildToolsVersion "20"

minSdkVersion 14

And my Android Studio's version is Beta 0.8.6.

[drakeet]

I think I might need to remind you that: my code at me.drakeet.testhover.ui.MainActivity.onCreate(MainActivity.java:85) is mSampleLayout.toggleHover();

[daimajia]

Hey. I published a SNAPSHOT version several minutes ago, you can have a try if it works now.

step1:

allprojects {
    repositories {
        mavenCentral()
        maven {
            url 'https://oss.sonatype.org/content/repositories/snapshots'
        }
    }
}

step2: compile 'com.daimajia.androidviewhover:library:1.0.2-SNAPSHOT@aar'

[drakeet]

Great!!! It has successfully run, and it was perfect, exactly what I wanted. Thanks again!

[daimajia]

Oh, great. Thanks for your feedback！