Caused by: libcore.io.ErrnoException: open failed: EACCES (Permission denied)解決辦法

最近做項目，遇到個人信息設置，具體需求就是要點擊imageView調出手機本地的圖庫選擇圖片設置頭像。開發中代碼沒有問題，運行後AS報錯如下： Caused by: libcore.io.ErrnoException: open failed: EACCES (Permission denied)

         最後查資料也沒有解決。 我用的是華爲mate8測試，系統是android6.0.之後查閱資料發現，原來6.0之後不能只在配置文件manifest.xml中添加讀寫文件的操作，還要在代碼中予以註明，爲安全起見。

具體代碼如下：

private static final int REQUEST_EXTERNAL_STORAGE = 1;
private static String[] PERMISSIONS_STORAGE = {
	Manifest.permission.READ_EXTERNAL_STORAGE,
	Manifest.permission.WRITE_EXTERNAL_STORAGE
};

public static void verifyStoragePermissions(Activity activity) {
	// Check if we have read or write permission
	int writePermission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
	int readPermission = ActivityCompat.checkSelfPermission(activity, Manifest.permission.READ_EXTERNAL_STORAGE);

	if (writePermission != PackageManager.PERMISSION_GRANTED || readPermission != PackageManager.PERMISSION_GRANTED) {
	// We don't have permission so prompt the user
		ActivityCompat.requestPermissions(
			activity,
			PERMISSIONS_STORAGE,
			REQUEST_EXTERNAL_STORAGE
		);
	}
}

在onCreate(){}方法中調用即可：

verifyStoragePermissions(this);