PermissionsDispatcher

1. 封装的意义

• 每次在需要判断权限的地方均写如上面所示的一套方法，很麻烦。
• 封装后只需要改变传进来的我们需要判断的权限即可。

2. 使用方法

2.1 步骤01

@RuntimePermissionspublic class MainActivity extends AppCompatActivity {    private Button mButton;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mButton = (Button) findViewByaId(R.id.bt_button);        mButton.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {            }        });    }    @NeedsPermission(Manifest.permission.CALL_PHONE)        //在获取权限的地方注释    void call() {        Intent intent = new Intent(Intent.ACTION_CALL);        Uri data = Uri.parse("tel:" + "10086");        intent.setData(data);        try {            startActivity(intent);        } catch (SecurityException e) {            e.printStackTrace();        }    }    @OnShowRationale(Manifest.permission.CALL_PHONE)        //提示用户为何要开启此权限    void showWhy(final PermissionRequest request) {        new AlertDialog.Builder(this)                .setMessage("拨打电话需要您的同意")                .setPositiveButton("知道了", new DialogInterface.OnClickListener() {                    @Override                    public void onClick(DialogInterface dialog, int which) {                        request.proceed();//再次执行权限请求                    }                }).show();    }    @OnPermissionDenied(Manifest.permission.CALL_PHONE)        //用户选择拒绝时的提示    void showDenied() {        Toast.makeText(this, "您拒绝了拨打电话的操作", Toast.LENGTH_SHORT).show();    }    @OnNeverAskAgain(Manifest.permission.CALL_PHONE)        //用户选择不再询问后的提示    void showNotAsk() {        new AlertDialog.Builder(MainActivity.this).setMessage("该功能需要访问电话的权限，不开启将无法正常工作！")                .setPositiveButton("去开启", new DialogInterface.OnClickListener() {                    @Override                    public void onClick(DialogInterface dialog, int which) {                        Intent intent = new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS);                        startActivity(intent);                    }                })                .setNegativeButton("保持禁止", new DialogInterface.OnClickListener() {                    @Override                    public void onClick(DialogInterface dialog, int which) {                    }                })                .create()                .show();    }}

2.2 步骤02

• Build-Make Moudle ‘app’
• 伴随着会生成MainActivityPermissionsDispatcher类
• 重写onRequestPermissionsResult方法
• 代码如下:

    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);        // NOTE: delegate the permission handling to generated method        MainActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);    }

        mButton.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                MainActivityPermissionsDispatcher.callWithPermissionCheck(MainActivity.this);            }        });    }

3. Demo地址

https://github.com/OnlyYouMyLove/MyPermissionsDispatcher