apps/OboeTester/app/src/main/java/com/mobileer/oboetester/BaseOboeTesterActivity.java

/*
 * Copyright 2021 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.mobileer.oboetester;

import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.widget.Toast;

/**
 * Support requesting RECORD_AUDIO permission.
 */

public abstract class BaseOboeTesterActivity extends Activity
        implements ActivityCompat.OnRequestPermissionsResultCallback {

    private static final int MY_PERMISSIONS_REQUEST_RECORD_AUDIO = 938355;
    private Class mTestClass;

    protected void showErrorToast(String message) {
        showToast("Error: " + message);
    }

    protected void showToast(final String message) {
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(BaseOboeTesterActivity.this,
                        message,
                        Toast.LENGTH_SHORT).show();
            }
        });
    }

    private boolean isRecordPermissionGranted() {
        return (ActivityCompat.checkSelfPermission(this,
                Manifest.permission.RECORD_AUDIO) == PackageManager.PERMISSION_GRANTED);
    }

    private void requestRecordPermission(){
        ActivityCompat.requestPermissions(
                this,
                new String[]{Manifest.permission.RECORD_AUDIO},
                MY_PERMISSIONS_REQUEST_RECORD_AUDIO);
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {

        if (MY_PERMISSIONS_REQUEST_RECORD_AUDIO != requestCode) {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
            return;
        }

        if (grantResults.length != 1 ||
                grantResults[0] != PackageManager.PERMISSION_GRANTED) {

            Toast.makeText(getApplicationContext(),
                    getString(R.string.need_record_audio_permission),
                    Toast.LENGTH_SHORT)
                    .show();
        } else {
            // Permission was granted
            beginTestThatRequiresRecording();
        }
    }

    /**
     * If needed, request recording permission before running test.
     */
    protected void launchTestThatDoesRecording(Class clazz) {
        mTestClass = clazz;
        if (isRecordPermissionGranted()) {
            beginTestThatRequiresRecording();
        } else {
            requestRecordPermission();
        }
    }

    protected void launchTestActivity(Class clazz) {
        Intent intent = new Intent(this, clazz);
        startActivity(intent);
    }

    private void beginTestThatRequiresRecording() {
        launchTestActivity(mTestClass);
    }
}