Why does Androidx.appcompat.AppCompatActivity throw java.lang.NoSuchMethodError: No virtual method...

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I recently modified my app to use the AndroidX libraries and I'm attempting to use the androidx.biometric.BiometricPrompt in an AppCompatActivity.

However, I get the following exception:

java.lang.NoSuchMethodError: No virtual method getMainExecutor()Ljava/util/concurrent/Executor

I've tried to use the application context instead but that didn't work either.

import androidx.biometric.BiometricPrompt;

import androidx.appcompat.app.AppCompatActivity;



class MainActivity extends AppCompatActivity {        

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        ButterKnife.bind(this);

        final BiometricPrompt.PromptInfo info = new BiometricPrompt.PromptInfo.Builder()

            .setTitle("Login")

            .setSubtitle("Perform login with your fingerprint")

            .setNegativeButtonText("Cancel")

            .build();

        new BiometricPrompt(this, getMainExecutor(), onFingerprintAuthentication())

            .authenticate(info, getCryptoObject());

    }

}

These are the AndroidX libraries I'm importing

implementation 'androidx.core:core:1.1.0-alpha03'

implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'

implementation 'androidx.recyclerview:recyclerview:1.1.0-alpha01'

implementation 'androidx.cardview:cardview:1.0.0'

implementation 'androidx.annotation:annotation:1.0.1'

implementation 'androidx.mediarouter:mediarouter:1.1.0-alpha01'

implementation 'androidx.browser:browser:1.0.0'

implementation 'androidx.exifinterface:exifinterface:1.0.0'

implementation 'androidx.vectordrawable:vectordrawable:1.1.0-alpha01'

implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'

implementation 'androidx.multidex:multidex:2.0.1'

implementation 'androidx.biometric:biometric:1.0.0-alpha03'

edited Jan 4 at 8:57

asked Jan 4 at 8:52

Christopher Araujo

1086

1

getMainExecutor was added to Context in API level 28. However, ContextCompat (androidx.core.content.ContextCompat) has a static getMainExecutor method that you should be able to use.

– Michael
Jan 4 at 9:19

@Michael Thank you so much! That fixed my problem.

– Christopher Araujo
Jan 4 at 10:17

add a comment |

I recently modified my app to use the AndroidX libraries and I'm attempting to use the androidx.biometric.BiometricPrompt in an AppCompatActivity.

However, I get the following exception:

java.lang.NoSuchMethodError: No virtual method getMainExecutor()Ljava/util/concurrent/Executor

I've tried to use the application context instead but that didn't work either.

import androidx.biometric.BiometricPrompt;

import androidx.appcompat.app.AppCompatActivity;



class MainActivity extends AppCompatActivity {        

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        ButterKnife.bind(this);

        final BiometricPrompt.PromptInfo info = new BiometricPrompt.PromptInfo.Builder()

            .setTitle("Login")

            .setSubtitle("Perform login with your fingerprint")

            .setNegativeButtonText("Cancel")

            .build();

        new BiometricPrompt(this, getMainExecutor(), onFingerprintAuthentication())

            .authenticate(info, getCryptoObject());

    }

}

These are the AndroidX libraries I'm importing

implementation 'androidx.core:core:1.1.0-alpha03'

implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'

implementation 'androidx.recyclerview:recyclerview:1.1.0-alpha01'

implementation 'androidx.cardview:cardview:1.0.0'

implementation 'androidx.annotation:annotation:1.0.1'

implementation 'androidx.mediarouter:mediarouter:1.1.0-alpha01'

implementation 'androidx.browser:browser:1.0.0'

implementation 'androidx.exifinterface:exifinterface:1.0.0'

implementation 'androidx.vectordrawable:vectordrawable:1.1.0-alpha01'

implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'

implementation 'androidx.multidex:multidex:2.0.1'

implementation 'androidx.biometric:biometric:1.0.0-alpha03'

edited Jan 4 at 8:57

asked Jan 4 at 8:52

Christopher Araujo

1086

1

getMainExecutor was added to Context in API level 28. However, ContextCompat (androidx.core.content.ContextCompat) has a static getMainExecutor method that you should be able to use.

– Michael
Jan 4 at 9:19

@Michael Thank you so much! That fixed my problem.

– Christopher Araujo
Jan 4 at 10:17

add a comment |

I recently modified my app to use the AndroidX libraries and I'm attempting to use the androidx.biometric.BiometricPrompt in an AppCompatActivity.

However, I get the following exception:

java.lang.NoSuchMethodError: No virtual method getMainExecutor()Ljava/util/concurrent/Executor

I've tried to use the application context instead but that didn't work either.

import androidx.biometric.BiometricPrompt;

import androidx.appcompat.app.AppCompatActivity;



class MainActivity extends AppCompatActivity {        

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        ButterKnife.bind(this);

        final BiometricPrompt.PromptInfo info = new BiometricPrompt.PromptInfo.Builder()

            .setTitle("Login")

            .setSubtitle("Perform login with your fingerprint")

            .setNegativeButtonText("Cancel")

            .build();

        new BiometricPrompt(this, getMainExecutor(), onFingerprintAuthentication())

            .authenticate(info, getCryptoObject());

    }

}

These are the AndroidX libraries I'm importing

implementation 'androidx.core:core:1.1.0-alpha03'

implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'

implementation 'androidx.recyclerview:recyclerview:1.1.0-alpha01'

implementation 'androidx.cardview:cardview:1.0.0'

implementation 'androidx.annotation:annotation:1.0.1'

implementation 'androidx.mediarouter:mediarouter:1.1.0-alpha01'

implementation 'androidx.browser:browser:1.0.0'

implementation 'androidx.exifinterface:exifinterface:1.0.0'

implementation 'androidx.vectordrawable:vectordrawable:1.1.0-alpha01'

implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'

implementation 'androidx.multidex:multidex:2.0.1'

implementation 'androidx.biometric:biometric:1.0.0-alpha03'

edited Jan 4 at 8:57

asked Jan 4 at 8:52

Christopher Araujo

1086

I recently modified my app to use the AndroidX libraries and I'm attempting to use the androidx.biometric.BiometricPrompt in an AppCompatActivity.

However, I get the following exception:

java.lang.NoSuchMethodError: No virtual method getMainExecutor()Ljava/util/concurrent/Executor

I've tried to use the application context instead but that didn't work either.

import androidx.biometric.BiometricPrompt;

import androidx.appcompat.app.AppCompatActivity;



class MainActivity extends AppCompatActivity {        

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        ButterKnife.bind(this);

        final BiometricPrompt.PromptInfo info = new BiometricPrompt.PromptInfo.Builder()

            .setTitle("Login")

            .setSubtitle("Perform login with your fingerprint")

            .setNegativeButtonText("Cancel")

            .build();

        new BiometricPrompt(this, getMainExecutor(), onFingerprintAuthentication())

            .authenticate(info, getCryptoObject());

    }

}

These are the AndroidX libraries I'm importing

implementation 'androidx.core:core:1.1.0-alpha03'

implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'

implementation 'androidx.recyclerview:recyclerview:1.1.0-alpha01'

implementation 'androidx.cardview:cardview:1.0.0'

implementation 'androidx.annotation:annotation:1.0.1'

implementation 'androidx.mediarouter:mediarouter:1.1.0-alpha01'

implementation 'androidx.browser:browser:1.0.0'

implementation 'androidx.exifinterface:exifinterface:1.0.0'

implementation 'androidx.vectordrawable:vectordrawable:1.1.0-alpha01'

implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'

implementation 'androidx.multidex:multidex:2.0.1'

implementation 'androidx.biometric:biometric:1.0.0-alpha03'

java android androidx

edited Jan 4 at 8:57

asked Jan 4 at 8:52

Christopher Araujo

1086

edited Jan 4 at 8:57

asked Jan 4 at 8:52

Christopher Araujo

1086

edited Jan 4 at 8:57

asked Jan 4 at 8:52

Christopher Araujo

1086

asked Jan 4 at 8:52

Christopher Araujo

1086

asked Jan 4 at 8:52

Christopher Araujo

1086

1

getMainExecutor was added to Context in API level 28. However, ContextCompat (androidx.core.content.ContextCompat) has a static getMainExecutor method that you should be able to use.

– Michael
Jan 4 at 9:19

@Michael Thank you so much! That fixed my problem.

– Christopher Araujo
Jan 4 at 10:17

add a comment |

1

getMainExecutor was added to Context in API level 28. However, ContextCompat (androidx.core.content.ContextCompat) has a static getMainExecutor method that you should be able to use.

– Michael
Jan 4 at 9:19

@Michael Thank you so much! That fixed my problem.

– Christopher Araujo
Jan 4 at 10:17

getMainExecutor was added to Context in API level 28. However, ContextCompat (androidx.core.content.ContextCompat) has a static getMainExecutor method that you should be able to use.

– Michael
Jan 4 at 9:19

@Michael Thank you so much! That fixed my problem.

– Christopher Araujo
Jan 4 at 10:17

add a comment |

1 Answer
1

active

oldest

votes

As @Michael mentioned in the comments, one can use

ContextCompat.getMainExecutor(this);

This solved my problem.

Alternatively, as mentioned in this answer, one can also create their own Executor

public class MainThreadExecutor implements Executor {

    private final Handler handler = new Handler(Looper.getMainLooper());



    @Override

    public void execute(@Nonnull Runnable runnable) {

        handler.post(runnable);

    }

}

answered Jan 4 at 10:27

Christopher Araujo

1086

add a comment |

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1 Answer
1

active

oldest

votes

As @Michael mentioned in the comments, one can use

ContextCompat.getMainExecutor(this);

This solved my problem.

Alternatively, as mentioned in this answer, one can also create their own Executor

public class MainThreadExecutor implements Executor {

    private final Handler handler = new Handler(Looper.getMainLooper());



    @Override

    public void execute(@Nonnull Runnable runnable) {

        handler.post(runnable);

    }

}

answered Jan 4 at 10:27

Christopher Araujo

1086

add a comment |

As @Michael mentioned in the comments, one can use

ContextCompat.getMainExecutor(this);

This solved my problem.

Alternatively, as mentioned in this answer, one can also create their own Executor

public class MainThreadExecutor implements Executor {

    private final Handler handler = new Handler(Looper.getMainLooper());



    @Override

    public void execute(@Nonnull Runnable runnable) {

        handler.post(runnable);

    }

}

answered Jan 4 at 10:27

Christopher Araujo

1086

add a comment |

As @Michael mentioned in the comments, one can use

ContextCompat.getMainExecutor(this);

This solved my problem.

Alternatively, as mentioned in this answer, one can also create their own Executor

public class MainThreadExecutor implements Executor {

    private final Handler handler = new Handler(Looper.getMainLooper());



    @Override

    public void execute(@Nonnull Runnable runnable) {

        handler.post(runnable);

    }

}

answered Jan 4 at 10:27

Christopher Araujo

1086

As @Michael mentioned in the comments, one can use

ContextCompat.getMainExecutor(this);

This solved my problem.

Alternatively, as mentioned in this answer, one can also create their own Executor

public class MainThreadExecutor implements Executor {

    private final Handler handler = new Handler(Looper.getMainLooper());



    @Override

    public void execute(@Nonnull Runnable runnable) {

        handler.post(runnable);

    }

}

answered Jan 4 at 10:27

Christopher Araujo

1086

answered Jan 4 at 10:27

Christopher Araujo

1086

answered Jan 4 at 10:27

Christopher Araujo

1086

answered Jan 4 at 10:27

Christopher Araujo

1086

add a comment |

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