Android 权限申请

申请权限逻辑

import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Build;

import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

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

public class Permission {

    private Activity activity;
    private List<String> permissions;
    private int requestCode;
    private OnPermissionListener onPermissionListener;

    public Permission(Activity activity, List<String> permissions, int requestCode, OnPermissionListener onPermissionListener) {
        this.activity = activity;
        this.permissions = permissions;
        this.requestCode = requestCode;
        this.onPermissionListener = onPermissionListener;
    }

    public Permission(Activity activity, List<String> permissions, int requestCode) {
        this.activity = activity;
        this.permissions = permissions;
        this.requestCode = requestCode;
        if (activity instanceof OnPermissionListener){
            onPermissionListener = (OnPermissionListener) activity;
        }else {
            throw new RuntimeException("请设置权限申请回调");
        }
    }

    public List<String> getPermissions() {
        return permissions;
    }

    /**
     * 检查所有权限是否允许
     * @param isRequestPermission 是否请求申请未允许的权限
     * @return true 允许所有权限，false 没有允许全部权限
     */
    public boolean check(boolean isRequestPermission) {
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M){
            return true;
        }
        //装没有允许的权限
        List<String> notGranted = new ArrayList<>();
        for (int i = 0; i < permissions.size(); i++) {
            String permission = permissions.get(i);
            if (ContextCompat.checkSelfPermission(activity, permission) != PackageManager.PERMISSION_GRANTED) {
                notGranted.add(permission);
            }
        }
        if (isRequestPermission && !notGranted.isEmpty()){
            String[] arr = new String[notGranted.size()];
            for (int i = 0; i < notGranted.size(); i++) {
                arr[i] = notGranted.get(i);
            }
            ActivityCompat.requestPermissions(activity, arr, requestCode);
        }
        return notGranted.isEmpty();
    }

    public void onRequestPermissionsResult(int requestCode,String[] permissions,int[] grantResults){
        if(this.requestCode == requestCode){
            List<String> granted = new ArrayList<>();
            List<String> denied = new ArrayList<>();
            for (int i = 0; i < permissions.length; i++) {
                String p = permissions[i];
                int g = grantResults[i];
                if (g == PackageManager.PERMISSION_GRANTED){
                    granted.add(p);
                }else {
                    denied.add(p);
                }
            }
            onPermissionListener.onGranted(granted);
            onPermissionListener.onDenied(denied);
        }
    }


}

请求回调

import java.util.List;

public interface OnPermissionListener {

    /**
     * 同意的权限
     *
     * @param permission
     */
    void onGranted(List<String> permission);

    /**
     * 拒接的权限
     *
     * @param permission
     */
    void onDenied(List<String> permission);
}