Android6.0权限申请封装Util类

PermissionsUtil类

import android.app.Activity;
import android.content.pm.PackageManager;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.widget.Toast;

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

public class PermissionsUtil {

   private Activity context;
   private int requestId;
   private List<String> permissionList;

   public PermissionsUtil(Activity context){
      this.context = context;
      permissionList = new ArrayList<>();
   }


   /**
    * 查询当前权限是否禁止
    * */
   public void shouldShowPermissionRationale(int requestId,String ... permission){
      this.requestId = requestId;
      for (int i = 0; i < permission.length; i++) {
         boolean checkPermisssion  = ContextCompat.checkSelfPermission(context, permission[i])!= PackageManager.PERMISSION_GRANTED;
         //表示权限被拒绝，说明此权限作用
         if(checkPermisssion){
            permissionList.add(permission [i]);
         }
      }
      if (null != permissionList && !permissionList.isEmpty()){
         //permissionList集合里面有未授权的权限
         String[] permissions = permissionList.toArray(new String[permissionList.size()]);
         requestPermissions(context,permissions);
      }
      //权限已经授权
      else {
         Toast.makeText(context,"权限已经授权",Toast.LENGTH_LONG).show();

      }

   }

   //查询当前申请的所有权限是否都被允许
   public void shouldShowPermissionRationale(String ... permission){
      permissionList.clear();
      for (int i = 0; i <permission.length ; i++) {
         boolean checkPermisssion  = ContextCompat.checkSelfPermission(context, permission[i])!= PackageManager.PERMISSION_GRANTED;
         //表示权限被拒绝，说明此权限作用
         if (checkPermisssion){
            permissionList.add(permission [i]);
         }
      }
      if (null != permissionList && !permissionList.isEmpty()){
         Toast.makeText(context,"当前权限未完全授权",Toast.LENGTH_LONG).show();
      }
      else {
         Toast.makeText(context,"权限已授权",Toast.LENGTH_LONG).show();
      }
   }




   //权限申请
   public void requestPermissions(Activity activity,String[] permission){
      ActivityCompat.requestPermissions(activity, permission, requestId);
   }
   //权限回调
   //Activity需实现OnRequestPermissionsResultCallback通过 PermissionsUtil.onRequestPermissionsResult引用回调
   public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,@NonNull int[] grantResults){

      if (requestCode == requestId){
         for (int i = 0; i < grantResults.length; i++) {
            if (grantResults [i] != PackageManager.PERMISSION_GRANTED){
               //判断是否勾选禁止后不再询问
               boolean showRequestPermission = ActivityCompat.shouldShowRequestPermissionRationale(context, permissions[i]);
               if (showRequestPermission) {
                  //权限重新申请
                  Toast.makeText(context,"权限被禁止了",Toast.LENGTH_LONG).show();
                  //requestPermissions(context,permissions);
                  break;
               } else {
                  //权限被禁止，且不再询问
                  Toast.makeText(context,"权限被禁止，且不再提示",Toast.LENGTH_LONG).show();
                  break;
               }
            }
            else {
               //当某个权限或者所有权限被允许
               shouldShowPermissionRationale(permissions);

               break;

            }

         }

      }
   }





}

在Activity使用

import android.Manifest;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

import com.example.binder.permissionstest.util.PermissionsUtil;

public class MainActivity extends AppCompatActivity implements View.OnClickListener,ActivityCompat.OnRequestPermissionsResultCallback {
    private PermissionsUtil permissionsUtil;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        permissionsUtil = new PermissionsUtil(this);
        findViewById(R.id.permission).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        String[] permissions = new String[]{Manifest.permission.CAMERA,Manifest.permission.CALL_PHONE, Manifest.permission.WRITE_EXTERNAL_STORAGE};
        switch (v.getId()){
            case R.id.permission:
                permissionsUtil.shouldShowPermissionRationale(111,permissions);
                break;
        }
    }

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

}

清单文件添加权限

<uses-permission android:name="android.permission.CAMERA"></uses-permission>
<uses-permission android:name="android.permission.CALL_PHONE"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>

结束