Android6.0权限申请

1.不想进行6.0进行权限配置
将Android Studio的build.gradle的targetSdkVersion改为22
android studio默认创建项目是23

2.原生的权限配置

 //登陆
        b_login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {

                    if (ContextCompat.checkSelfPermission(LoginActivity.this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
                        Log.d(TAG, "onClick: no-permission==");
                        ActivityCompat.requestPermissions(LoginActivity.this, new String[]{Manifest.permission.READ_PHONE_STATE},
                                123);
                    }else{
                        login();
                    }
                } else {
                    Log.d(TAG, "onClick: ==have permission  login");
                    login();
                }

                //Log.d(TAG, "login: ===" + BaseUrlPath.LOGIN);

            }
        });

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == 123) {
            Log.d(TAG, "onRequestPermissionsResult: ==grantResults.size=="+grantResults.length+
                    "value"+grantResults[0]);
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                login();

            }else{
                if(ActivityCompat.shouldShowRequestPermissionRationale(LoginActivity.this,Manifest.permission.READ_PHONE_STATE)){
                    //向用户解释为什么需要这个权限
                    //表明用户没有彻底禁止弹出权限请求,没有选择不再显示复选框,重新申请需要的权限
                    Log.d(TAG, "onRequestPermissionsResult: =====解释===");
                }else{
                //用户点击了不再提示，要让用户到设置里面自己去修改
                    Log.d(TAG, "onRequestPermissionsResult: ==不解释===");
                    needPermissions();
                }

            }
        }
    }

/**
     * 再次申请权限
     */
    private void needPermissions() {
        final AlertDialog.Builder builder = new AlertDialog.Builder(LoginActivity.this);
        builder.setTitle("帮助");
        builder.setMessage("当前应用缺少必要权限"); // 拒绝, 退出应用
        builder.setNegativeButton("退出", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        builder.setPositiveButton("设置", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                intent.setData(Uri.parse("package:" + getPackageName()));
                startActivity(intent);
            }
        });
        builder.show();
    }