Android运行时权限

import android.Manifest;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    // 申请权限
    private final int REQUEST_PERMISSION = 666;
    private boolean gotoAppDetail = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 判断系统版本
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // 申请权限
            requestPermission();
        } else {
            // 初始化
            onInit();
        }
    }

    /**
     * 申请权限
     */
    private void requestPermission() {
        // 检查权限
        String[] permissions = {Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO, Manifest.permission.READ_PHONE_STATE, Manifest.permission.READ_EXTERNAL_STORAGE};
        List<String> checkPermissions = new ArrayList<>();

        for (String permission : permissions) {
            if (ActivityCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
                checkPermissions.add(permission);
            }
        }

        if (checkPermissions.size() > 0) {
            // 申请权限
            ActivityCompat.requestPermissions(this, checkPermissions.toArray(new String[0]), REQUEST_PERMISSION);
        } else {
            // 初始化
            onInit();
        }
    }

    /**
     * 申请权限回调
     *
     * @param requestCode
     * @param permissions
     * @param grantResults
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == REQUEST_PERMISSION) {
            int flag = 0;
            for (int i = 0; i < grantResults.length; i++) {
                if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
                    flag = 1;
                    if (!ActivityCompat.shouldShowRequestPermissionRationale(this, permissions[i])) {
                        flag = 2;
                    }
                    break;
                }
            }

            if (flag == 0) {
                // 初始化
                onInit();
            } else if (flag == 1) {
                new AlertDialog.Builder(this).setTitle("提示").setMessage("请允许所有权限！").setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // 申请权限
                        requestPermission();
                    }
                }).show();
            } else {
                new AlertDialog.Builder(this).setTitle("提示").setMessage("请手动允许所有权限！").setPositiveButton("确定", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        gotoAppDetail = true;
                        // 跳转到应用详情界面
                        gotoAppDetailIntent(MainActivity.this);
                    }
                }).show();
            }
        } else {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }

    /**
     * 跳转到应用详情界面
     */
    private void gotoAppDetailIntent(Activity activity) {
        Intent intent = new Intent();
        intent.setAction(android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
        intent.setData(Uri.parse("package:" + activity.getPackageName()));
        activity.startActivity(intent);
    }

    @Override
    protected void onRestart() {
        super.onRestart();
        // 跳转到应用详情界面返回
        if (gotoAppDetail) {
            gotoAppDetail = false;
            // 申请权限
            requestPermission();
        }
    }

    /**
     * 初始化
     */
    private void onInit() {
        
    }
}

参考链接：

安卓跳转到应用信息界面(用于方便用户打开权限)

Android 6.0运行时权限勾选不再询问后该如何处理？