Crash on Android 10 (InflateException in layout/abc_screen_simple line #17)

Update Calligraphy to newest version to solve this problem: Link: https://github.com/InflationX/Calligraphy/issues/35

More specifically, both Calligraphy and ViewPump need to be updated:

implementation 'io.github.inflationx:calligraphy3:3.1.1'
implementation 'io.github.inflationx:viewpump:2.0.3'

Migrating from Calligraphy 2 to 3 requires some code changes; see examples in Calligraphy 3 README.

You need to update calligraphy version and change code according to new version

You need to change repository in dependencies from

implementation "uk.co.chrisjenx:calligraphy:$caligraphyVersion"

to

implementation 'io.github.inflationx:calligraphy3:3.1.1'
implementation 'io.github.inflationx:viewpump:2.0.3'

You need to change usage of import from

import uk.co.chrisjenx.calligraphy.CalligraphyConfig;

to

import io.github.inflationx.calligraphy3.CalligraphyConfig;

Calligraphy config from

CalligraphyConfig.initDefault(new CalligraphyConfig.Builder()
               .setDefaultFontPath(getResources().getString(R.string.bariol))
               .setFontAttrId(R.attr.fontPath)
                .build())) 
                .build());

to

ViewPump.init(ViewPump.builder()
            .addInterceptor(new CalligraphyInterceptor(
                    new CalligraphyConfig.Builder()
                            
            .setDefaultFontPath(getResources().getString(R.string.bariol))
                            .setFontAttrId(R.attr.fontPath)
                            .build()))
            .build());

I used font bariol you can change it to yours.

& newbase to

super.attachBaseContext(ViewPumpContextWrapper.wrap(newBase));

Please foloow this below steps.
1> First of all check build.gradle(:app) file
2> If you are using  this below library:
implementation 'uk.co.chrisjenx:calligraphy:2.3.0'
3> Update this " implementation 'uk.co.chrisjenx:calligraphy:2.3.0' " library with this below library.
implementation 'io.github.inflationx:viewpump:2.0.3'
implementation 'io.github.inflationx:calligraphy3:3.1.1'
4> In project where You use this below code :
@Override
    protected void attachBaseContext(Context newBase) {
        super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
    }

5> Update it with this below code:

   @Override
    protected void attachBaseContext(Context newBase) {
        super.attachBaseContext(ViewPumpContextWrapper.wrap(newBase));
    }

Definitively your problem is the Calligraphy library, I've got the same problem and there are 2 ways to solve it:

1. Go back to target version 28, and wait a possible update of the Calligraphy library. 2
2. Remove the library

About the exception:

The exception error in Calligraphy comes from the use of the reflection in the library. See the last line of this exception:

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example, PID: 8220
android.view.InflateException: Binary XML file line #17 in com.example:layout/abc_screen_simple: Binary XML file line #17 in com.example/abc_screen_simple: Error inflating class androidx.appcompat.widget.FitWindowsLinearLayout
Caused by: android.view.InflateException: Binary XML file line #17 in com.example/abc_screen_simple: Error inflating class androidx.appcompat.widget.FitWindowsLinearLayout
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Field.get(java.lang.Object)' on a null object reference

Android in your documentation explain that some reflection methods (non-SDK interfaces) are restricted in the API 29 platform.

Reflection via Class.getDeclaredField() or Class.getField() --------> NoSuchFieldException thrown

Reflection via Class.getDeclaredMethod(), Class.getMethod() ----> NoSuchMethodException thrown.

Reflection via Class.getDeclaredFields(), Class.getFields() --------> Non-SDK members not in results.

Reflection via Class.getDeclaredMethods(), Class.getMethods() -> Non-SDK members not in results

Source: Restrictions on non-SDK interfaces

if you are using calligraphy so you should migrate to calligraphy3 : https://github.com/InflationX/Calligraphy

implementation 'io.github.inflationx:calligraphy3:3.1.1'
implementation 'io.github.inflationx:viewpump:2.0.3'

Migrate from chrisjenx/Calligraphy to InflationX/Calligraphy and update Calligraphy to newest version

You can change buildTools version and sdk version from 29 to 28

    targetSdk = 28
    compileSdk = 28
    buildTools = '28.0.3'

This dependency implementation 'com.ice.restring:restring:1.0.0' also causes this crash if targetSdkVersion equals to 29 or higher,

so if you have this dependency (implementation 'com.ice.restring:restring:1.0.0') in your gradle you can solve this problem by removing it or using another lib that work with targetSdkVersion 29

When faced with this issue, just update the calligraphy and viewpump in your app gradle to the latest version. Presently, the current version is: implementation 'io.github.inflationx:calligraphy3:3.1.1' implementation 'io.github.inflationx:viewpump:2.0.3'

Update your calligraphy import in your build.gradle(:app) file with this below

implementation 'io.github.inflationx:viewpump:2.0.3'

implementation 'io.github.inflationx:calligraphy3:3.1.1'

and use ViewPumpContextWrapper instead of CalligraphyContextWrapper