ic_action_next.png

[laobadao]

when I clone your module , and import to my project with android studio and build with gradle .
then i run it ,
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:648)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #59: Error inflating class ImageButton

android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x1/d=0x7f02004a a=-1 r=0x7f02004a}

then i found you put the ic_action_next.png in drawable-v21 ,not such as drawable-xhdpi ,then i moved it to the drawable-xhdpi ,and run it ,successd

i want to konw ,does there have any codes i should write to avoid similar incidents？

[trbala0205]

May I know in which version you ran this module? because, the image ic_action_next.png is in drawable-v21 folder will support for only API Level 21 or upper level. If you are using less than API Level 21 mobile means (which means your mobile version might be 4.x series or lesser)these type of errors will occur.
To overcome this you should put the image file in common drawable folders like drawable-hdpi, -ldpi, -mdpi, -xhdpi. If it is in common folders, android itself search that image in all these folder and use it in ImageButton view.

Though, I have directly set this image in XML layout, so we don't want to write any code for this errors, just copy that image to common drawable, it will work for sure. If we are trying to set this image through code, we can handle this error by checking the mobile version programmatically , based on that we can set the image.
for example,

int currentapiVersion = android.os.Build.VERSION.SDK_INT;
if (currentapiVersion < android.os.Build.VERSION_CODES.LOLLIPOP){
// Do something for lollipop and above versions
} else{
// do something for phones running an SDK before lollipop
}

Hope I have clarified your doubt. let me know your feedback

[laobadao]

thanks a lot,you are right ,my bulid.gradle like this
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId "com.bala.welcomescreens"
minSdkVersion 11
targetSdkVersion 23
}

but my mobile phone 's API is 19 ,I know this error is what causes , thank you very much to answer my question.and teach me how to solve this,thank you